VLT® 2800 Quick Setup SW3VLT 2800 Operating Instructions Software version: 3.1x This Design Guide can be used for all VLT 2800 Series frequency converters with software version 3.1x

VLT® 2800

Rev. 2006-12-08

www.danfoss.com/drives

195R0027 MG27A202

*MG27A202*

MG

27A202

VLT ®

2800 Op

erating

Instru

ction

sOperating Instructions

Contents

Quick Setup 3

General warning 3

Mechanical Installation 3

Electrical Installation, power 3

Electrical Installation, control cables 3

Programming 3

Motor start 4

Safety regulations 4

Warning against unintended start 4

Introduction to VLT 2800 5

Software version 5

High voltage warning 6

These rules concern your safety 6

Warning against unintended start 6

Control unit 7

Manual initialisation 7

Hand Auto 8

Automatic motor tuning 9

Programming 10

Operation & Display 10

Load and Motor 18

References & Limits 28

Inputs and outputs 35

Special functions 44

Enhanced Sleep Mode 53

Installation 58

Mechanical dimensions 58

Mechanical installation 62

General information about electrical installation 63

EMC-correct electrical installation 64

Electrical installation 65

Safety clamp 67

Pre-fuses 67

Mains connection 67

Motor connection 68

RFI switch 68

Direction of motor rotation 68

Parallel connection of motors 69

Motor cables 69

Motor thermal protection 70

Brake connection 70

Earth connection 70

Load sharing 71

Tightening Torque, Power Terminals 71

VLT® 2800 Series

MG.27.A2.02 - VLT ® is a registered Danfoss trademark 1

Control of mechanical brake 71

Access to control terminals 71

Electrical installation, control cables 72

Tightening torques, control cables 73

Electrical installation, control terminals 73

Relay connection 73

VLT Software Dialog 73

Connection examples 74

All about VLT 2800 75

Display readout 77

Warnings/alarm messages 77

Warning words, extended status words and Alarmwords 81

Special conditions 82

Aggressive environments 82

Derating for high switching frequency - VLT 2800 83

Temperature-dependent switch frequency 83

Galvanic Isolation (PELV) 83

EMC emission 84

UL Standard 84

General technical data 85

Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V 90

Technical data, mains supply 3 x 380 - 480 V 91

Available literature 92

Supplied with the unit 92

Index 100

VLT® 2800 Series

2 MG.27.A2.02 - VLT ® is a registered Danfoss trademark

Quick SetupGeneral warning

Using this Quick Setup, you can carry out quick andEMC-correct installation of the frequency converter infive steps. The Operating Instructions, which are alsoenclosed, give other examples of installation and de-scribe all functions in detail.

Read the safety instructions on this pagebefore installing the unit.

Mechanical Installation

VLT 2800 frequency converters allow side-by-side in-stallation. Because of the need for cooling, there mustbe 10 cm free air passage above and below the fre-quency converter. Drill holes in accordance with themeasurements given in section Mechanical dimen-stions. Retighten all four screws.

Fit the decoupling plate to the power cables and theearth screw (terminal 95).

Electrical Installation, power

Please note that the power terminals can be removed.Connect mains to the mains terminals of the frequencyconverter, i.e. 91, 92, 93 and the earth connection toterminal 95. Fit a screened/armoured cable from themotor to the motor terminals of the frequency convert-er, i.e. U, V, W. The screen ends in a screen connector.

Electrical Installation, control cables

Remove the front cover underneath the control panel.Place a jumper between terminals 12 and 27.

Programming

Carry out programming on the control panel. Press the[QUICK MENU] key to enter the Quick menu. In thismenu, parameters can be selected by means of the [+]and [-] keys. The parameter values can be changed bypressing [CHANGE DATA]. Changes are programmedusing the [+] and [-] keys. Finish the change of a pa-rameter setting by pressing [CHANGE DATA]. Achange of parameter values is saved automatically af-ter a mains failure. If the display shows three dots atthe right, the parameter value has more than threedigits. In order to see the value, activate [CHANGEDATA]. Press [QUICK MENU]: Set the motor param-eters that are on the nameplate of the motor:

Motor power [kW] parameter 102Motor voltage [V] parameter 103Motor frequency [Hz] parameter 104Motor current [A] parameter 105Rated motor speed parameter 106

Activate AMT:

Automatic motor tuning parameter 107

Set reference range

Min. reference, RefMIN parameter 204Max. reference, RefMAX parameter 205

Ramp-up time [s] parameter 207Ramp-down time [s] parameter 208

In parameter 002 Local/remote control, the frequencyconverter mode can be selected as Remote operation[0], i.e. via the control terminals, or Local [1], i.e. viathe control unit.

VLT® 2800 Series


Qui

ck S

etup

Set the control location to Local [1].

Local/remote operation = Local [1] Par. 002

Set the motor speed by adjusting the Local refer-ence

Local reference Parameter 003

Motor start

Press [Start] to start the motor. Set the motor speed byadjusting parameter 003 Local reference.

Check whether the direction of rotation of the motorshaft is clockwise. If not, exchange any two phases onthe motor cable. Press [STOP/RESET] to stop the mo-tor. Press [QUICK MENU] to return to display mode.(QUICK MENU] + [+] keys must be pressed simulta-neously to give access to all parameters.

Safety regulations

The voltage of the frequency convertercan be fatal whenever it is connected tomains. Incorrect installation of the motoror the frequency converter may lead todamage to the equipment, serious per-sonal injury or death.

Consequently, the provisions of this Quick Setup, aswell as national and local rules and safety regulations,must be complied with.

Touching the electrical parts may be fatal, even afterthe equipment has been disconnected from mains:wait at least 4 min.

1. The mains supply to the frequency convertermust be disconnected if repair work is to becarried out.

2. The [STOP/RESET] key on the control panelof the frequency converter does not discon-nect the mains supply and is thus not to beused as a safety switch.

3. Correct protective earthing of the unit mustbe established, the user must be protectedagainst supply voltage, and the motor mustbe protected against overload in accordancewith applicable national and local regulations.

4. The earth leakage current is higher than 3.5mA.

5. Protection against motor overload is not in-cluded in the factory setting. If this function isrequired, set parameter 128 Motor thermal

protection to data value ETR Trip or ETRWarning.

6. Check that the mains supply has been dis-connected before removing the motor andmains plugs.

Warning against unintended start

The motor can be brought to a stop bymeans of digital commands, bus com-mands, references or local stop, while thefrequency converter is connected tomains. If personal safety considerationsmake it necessary to ensure that no unin-tended start occurs, these stops are notsufficient.While parameters are being programmed,the motor may start. Consequently, thestop key [STOP/RESET] must always beactivated, following which data can bemodified.A motor that has been stopped may startif faults occur in the electronics of the fre-quency converter, or if a temporary over-load, a fault in the supply mains or a faultin the motor connection ceases.

NB!Indicates something to be noted by thereader.

Indicates a general warning.

Indicates a high-voltage warning.

VLT® 2800 Series


VLT 2800Operating InstructionsSoftware version: 3.1x

This Design Guide can be used for all VLT 2800 Series frequency converters with software version 3.1x.The software version number can be seen from parameter 640.

WarningIt can be extremely dangerous to touch the electrical parts even when the mains supply has been disconnected.Also ensure that other voltage inputs are disconnected from load sharing through the DC bus.Wait at least 4 minutes after the input power has been removed before servicing the drive.

VLT® 2800 Series


Intr

oduc

tion

to V

LT 2

800

High voltage warning

The voltage of the frequency converter isdangerous whenever the converter is con-nected to mains. Incorrect fitting of themotor or frequency converter may causedamage to the equipment, serious injuryor death. Consequently, it is essential tocomply with the instructions in this manualas well as local and national rules andsafety regulations.

The Protective Extra Low Voltage (PELV)requirements stated in IEC 61800-5-1 arenot fulfilled at altitudes above 2000 m(6562 ft.). For 200V frequency convertersthe requirements are not fulfilled at alti-tudes above 5000 m (16 404 ft.). Pleasecontact Danfoss Drives for further infor-mation.

These rules concern your safety

1. The frequency converter must be disconnec-ted from the mains if repair work is to becarried out. Check that the mains supply hasbeen disconnected and that the prescribedtime has passed before removing motor andmains plugs.

2. The [STOP/RESET] key on the control panelof the frequency converter does not discon-nect the equipment from mains and is thusnot to be used as a safety switch.

3. The unit must be properly connected to theearth, the user must be protected against thesupply voltage and the motor must be pro-tected against overloading pursuant to pre-vailing national and local regulations.

4. The earth leakage currents are higher than3.5 mA.

5. Protection against motor overload is not in-cluded in the factory setting. If this function isrequired, set parameter 128 Motor thermalprotection to data value ETR trip or data valueETR warning. For the North American market:The ETR functions provide overload protec-tion of the motor, class 20, in accordance withNEC.

6. Do not remove the plugs for the motor - andmains supply while the frequency converter

is connected to mains. Check that the mainssupply has been disconnected and that theprescribed time has passed before removingmotor and mains plugs.

7. Note that the frequency converter has morevoltage inputs than L1, L2 and L3 when theDC bus terminals are used. Check that allvoltage inputs are disconnected and that theprescribed time has passed before repairwork is commenced.

Warning against unintended start

1. The motor can be brought to a stop by meansof digital commands, bus commands, refer-ences or a local stop, while the frequencyconverter is connected to mains. If personalsafety considerations make it necessary toensure that no unintended start occurs, thesestop functions are not sufficient.

2. While parameters are being changed, themotor may start. Consequently, the stop key[STOP/RESET] must always be activated,following which data can be modified.

3. A motor that has been stopped may start iffaults occur in the electronics of the frequen-cy converter, or if a temporary overload or afault in the supply mains or the motor con-nection ceases.

Use on isolated mains

See section RFI Switch regarding use on isolatedmains.

It is important to follow the recommendations regard-ing installation on IT-mains, since sufficient protectionof the complete installation must be observed. Not tak-ing care using relevant monitoring devices for IT-mains may result in damage.

VLT® 2800 Series


Control unit

On the front of the frequency converter there is a con-trol panel.

The control panel is divided into four function groups:

1. Six-digit LED display.

2. Keys for changing parameters and shiftingdisplay function.

3. Indicator lamps.

4. Keys for local operation.

All displays of data are in the form of a six-digit LEDdisplay capable of showing one item of operating datacontinuously during normal operation. As a supple-ment to the display, there are three indicator lamps forindication of mains connection (ON), warning (WARN-ING) and alarm (ALARM). Most of the frequency con-verter's parameter Setups can be changed immedi-ately via the control panel, unless this function hasbeen programmed as Locked [1] via parameter 018Lock for data changes.

Control keys

[QUICK MENU] allows access to the parameters usedfor the Quick menu.The[QUICK MENU] key is also used if a change to aparameter value is not to be implemented.See also [QUICK MENU] + [+].

[CHANGE DATA] is used for changing a setting.The [CHANGE DATA] key is also used for confirminga change of parameter settings.

[+] / [-] are used for selecting parameters and forchanging parameter values.These keys are also used in Display mode for selectingthe display of an operating value.

The [QUICK MENU] + [+] keys must be pressed at thesame time to give access to all parameters. See Menumode.

[STOP/RESET] is used for stopping the connectedmotor or for resetting the frequency converter after atrip.Can be selected as Active [1] or Not active [0] via pa-rameter 014 Local stop/reset. In Display mode, thedisplay will flash if the stop function is activated.

NB!If the [STOP/RESET] key is set at Not ac-tive [0] in parameter 014 Local stop/re-set,and there is no stop command via thedigital inputs or serial communication, themotor can only be stopped by disconnect-ing the mains voltage to the frequencyconverter.

[START] is used for starting the frequency converter.It is always active, but the [START] key cannot over-ride a stop command.

Manual initialisation

Disconnect mains voltage. Hold the [QUICK MENU] +[+] + [CHANGE DATA] keys down while simultane-ously reconnecting the mains voltage. Release thekeys; the frequency converter has now been program-med for the factory setting.

VLT® 2800 Series


Intr

oduc

tion

to V

LT 2

800

Display readout states

Display mode

In normal operation, one item of operating data can bedisplayed continuously at the operator's own choice.By means of the [+/-] keys the following options can beselected in Display mode:

- Output frequency [Hz]

- Output current [A]

- Output voltage [V]

- Intermediate circuit voltage [V]

- Output power [kW]

- Scaled output frequency fout x p008

Menu mode

In order to enter the Menu mode [QUICK MENU] + [+]must be activated at the same time.In Menu mode, most of the frequency converter pa-rameters can be changed. Scroll through the param-eters using the [+/-] keys. While scrolling in the Menumode proceeds, the parameter number will flash.

The display shows that the setting in parameter 102Motor power PM,N is 0.75. In order to change the valueof 0.75, [CHANGE DATA] must first be activated; theparameter value can then be changed using the [+/-]keys.

If for a given parameter the display shows three dotsat the right, it means that the parameter value hasmore than three digits. In order to see the value, acti-vate [CHANGE DATA].

The display shows that in parameter 128 Motor thermalprotection the selection made is Thermistor trip [2].

Quick menu

Using the [QUICK MENU] key, it is possible to accessthe 12 most important parameters of the frequencyconverter. After programming, the frequency converteris in most cases ready for operation. When the [QUICKMENU] key is activated in Display mode, the Quickmenu starts. Scroll through the quick menu using the[+/-] keys and change the data values by first pressing[CHANGE DATA] and then changing the parametervalue with the [+/-] keys.TheQuick menu parameters are:

• Par. 100 Configuration

• Par. 101 Torque characteristic

• Par. 102 Motor power PM,N

• Par. 103 Motor voltage UM,N

• Par. 104 Motor frequency fM,N

• Par. 105 Motor current IM,N

• Par. 106 Rated motor speed nM,N

• Par. 107 Automatic motor adaptation

• Par. 202 Output frequency high limit fMAX

• Par. 203 Reference range

• Par. 204 Minimum reference RefMIN

• Par. 205 Maximum reference RefMAX

• Par. 207 Ramp-up time

• Par. 208 Ramp-down time

• Par. 002 Local/remote operation

• Par. 003 Local reference

Parameter 102 - 106 can be read out from the motor'snameplate.

Hand Auto

During normal operation the frequency converter is inAuto mode, where the reference signal is given exter-nally, analog or digital via the control terminals. How-ever, in Hand mode, it is possible to give the referencesignal locally via the control panel.

On the control terminals, the following control signalswill remain active when Hand mode is activated:

• Hand Start (LCP2)

• Off Stop (LCP2)

• Auto Start (LCP2)

VLT® 2800 Series


• Reset

• Coasting Stop Inverse

• Reset and Coasting Stop Inverse

• Quick Stop Inverse

• Stop Inverse

• Reversing

• DC Braking Inverse

• Setup Select LSB

• Setup Select MSB

• Thermistor

• Precise Stop Inverse

• Precise Stop/Start

• Jog

• Stop Command Via Serial Comm.

Switching between Auto- and Hand mode:By activating the [Change Data] key in [Display Mode],the display will indicate the mode of the frequencyconverter.

Scroll up/down in order to switch to Hand mode:

When the frequency converter is in Hand mode thereadout will be like:

and the reference can be changed by using the fol-lowing keys:

NB!Please note, that parameter 020 mayblock the choice of mode.

Automatic motor tuningAutomatic motor tuning (AMT) is performed as follows:

1. In parameter 107 Automatic motor tuning se-lect data value [2]. “107” will now flash, and“2” will not flash.

2. AMT is activated by pressing start. “107” willnow flash and dashes will move from left toright in the data value field.

3. When “107” appears once more with the datavalue [0], AMT is complete. Press [STOP/RESET] to save the motor data.

4. “107” will then continue to flash with the datavalue [0]. You can now proceed.

NB!VLT 2880-2882 do not have AMT func-tion.

VLT® 2800 Series


Intr

oduc

tion

to V

LT 2

800

Operation & Display

001 Language

(language)

Value:

English (english) [0]

German (deutsch) [1]

French (francais) [2]

Danish (dansk) [3]

Spanish (espanol) [4]

Italian (italiano) [5]

Function:This parameter is used to choose the language to beshown in the display whenever the LCP control unit isconnected.

Description of choice:There is a choice of the languages shown. The factorysetting may vary.

002 Local/remote operation

(OPERATION SITE)

Value:

Remote operation (REMOTE) [0]

Local operation (LOCAL) [1]

Function:There is a choice of two different modes of operationof the frequency converter; Remote operation [0] orLocal operation [1]. See also parameter 013 Local con-trol if Local operation [1] is selected.

Description of choice:If Remote operation [0] is selected, the frequency con-verter is controlled via:

1. the control terminals or via serial communi-cation.

2. the [START] key. This cannot, however,override stop commands transmitted via thedigital inputs or via serial communication.

3. the [STOP/RESET] and [JOG] keys, on thecondition that these are active.

If Local operation [1], is selected, the frequency con-verter is controlled via:

1. the [START] key. This cannot, however,override stop commands via the digital inputs(see parameter 013 Local control).

2. the [STOP/RESET] and [JOG] keys, on thecondition that these are active.

3. the [FWD/REV] key, on the condition that ishas been selected as active in parameter 016Local reversing, and that parameter 013 Localcontrol is set at Local control and open loop[1] or Local control as parameter 100 [3]. Pa-rameter 200 Output frequency range is setat Both directions.

4. parameter 003 Local reference where the ref-erence can be set using the [+] and [-] keys.

5. an external control command that can beconnected to the digital inputs (see parame-ter 013 Local control).

NB!The [JOG] and [FWD/REV] keys are lo-cated on the LCP control unit.

003 Local reference

(LOCAL REFERENCE)

Value:Par. 013 Local control must be set to [1]or [2]:0 - fMAX (par. 205) 50 Hz

Par. 013 Local control must be set to [3] or[4].RefMIN - Ref MAX (par. 204-205) 0,0

Function:In this parameter, the local reference can be set man-ually. The unit of the local reference depends on theconfiguration selected in parameter 100 Configura-tion.

Description of choice:In order to protect the local reference, parameter 002Local/remote operation must be set to Local opera-tion [1]. Local reference cannot be set via serial com-munication.

VLT® 2800 Series

= factory setting, () = display text, [] = value for use in communication via serial communication port


004 Active Setup

(active Setup)

Value:

Factory Setup (FACTORY SETUP) [0]

Setup 1 (setup 1) [1]




Multi Setup (MULTI SETUP) [5]

Function:The active parameter Setup is selected here. All pa-rameters can be programmed in four individual pa-rameter Setups. Shifts between Setups can be madein this parameter via a digital input or via serial com-munication.

Description of choice:Factory Setup [0] contains the factory-set parametervalues. Setup 1-4 [1]-[4] are four individual Setupswhich can be selected as required. Multi Setup [5] isused where remote-controlled shifts between the fourSetups via a digital input or via serial communicationis required.

005 Programming Setup

(EDIT SETUP)

Value:

Factory Setup (FACTORY SETUP) [0]





Active Setup (ACTIVE SETUP) [5]

Function:You can select which Setup you want to programmeduring operation (applies both via the control paneland the serial communication port). It is, for example,possible to programme Setup 2 [2], while the activeSetup is set to Setup 1 [1] in parameter 004 ActiveSetup .

Description of choice:Factory Setup [0] contains the factory-set data and canbe used as a source of data if the other Setups are tobe reset to a known status. Setup 1-4 [1]-[4] are indi-vidual Setups that can be programmed freely during

operation. If Active Setup [5] is selected, the program-ming Setup will be equal to parameter 004 ActiveSetup.

NB!If data is modified or copied to the activeSetup, the modifications have an immedi-ate effect on the unit's operation.

006 Setup copying

(SETUP COPY)

Value:

No copying (NO COPY) [0]

Copy to Setup 1 from #(COPY TO SETUP 1) [1]




Copy to all Setups from # (copy to all) [5]

Function:You can copy from the selected active Setup in pa-rameter 005 Programming setup to the selected Setupor Setups in this parameter.

NB!Copying is only possible in Stop (motorstopped in connection with a stop com-mand).

Description of choice:Copying begins when the required copying functionhas been selected and the [OK]/[CHANGE DATA] keyhas been pushed. The display indicates when copyingis in progress.

007 LCP copy

(LCP COPY)

Value:

No copying (NO COPY) [0]

Upload all parameters (UPL. ALL PAR.) [1]

Download all parameters (DWNL. ALL PAR.) [2]

Download size-independent parameters(DWNL.OUTPIND.PAR.) [3]

VLT® 2800 Series



Pro

gram

min

g

Function:Parameter 007 LCP copy is used if you want to use theLCP 2 control panel's integral copy function. The func-tion is used if you want to copy all parameter setupsfrom one frequency converter to another by moving theLCP 2 control panel.

Description of choice:Select Upload all parameters [1] if you want all param-eter values to be transferred to the control panel. Se-lect Download all parameters [2] if all parameter valuestransferred are to be copied to the frequency converterto which the control panel is attached. Select Down-load size-independent par. [3] if you only want to down-loade the size-independent parameters. This is usedwhen downloading to a frequency converter with a dif-ferent rated power size than that from which the pa-rameter setup originates.

NB!Upload/download can only be performedin stop mode. Download can only be per-formed to a frequency converter with thesame software version number, see pa-rameter 626 Database identification no.

008 Display scaling of output frequency

(FREQUENCY SCALE)

Value:0.01 - 100.00 1.00

Function:In this parameter, the factor is selected by which theoutput frequency is to be multiplied. The value isshown in the display, provided parameters 009-012Display readout have been set to Output frequency xscaling [5].

Description of choice:Set the required scaling factor.

009 Large display readout

(DISPLAY LINE 2)

Value:

No readout (none) [0]

Resulting reference [%](reference [%]) [1]

Resulting reference [unit](reference [unit]) [2]

Feedback [unit] (feedback [unit]) [3]

Frequency [Hz] (Frequency [Hz]) [4]

Output frequency x scaling(frequency x scale) [5]

Motor current [A] (Motor current [A]) [6]

Torque [%] (Torque [%]) [7]

Power [kW] (Power [kW]) [8]

Power [HP] (Power [HP][US]) [9]

Motor voltage [V](Motor voltage [V]) [11]

DC link voltage [V](DC link voltage [V]) [12]

Thermal load motor [%](Motor thermal [%]) [13]

Thermal load [%](FC. thermal[%]) [14]

Running hours [Hours](RUNNING HOURS]) [15]

Digital input [Bin](Digital input[bin]) [16]

Analog input 53 [V](analog input 53 [V]) [17]

Analog input 60 [mA](analog input 60 [mA]) [19]

Pulse reference [Hz](Pulse ref. [Hz]) [20]

External reference [%](external ref. [%]) [21]

Status word [Hex] (Status word [hex]) [22]

Heatsink temperature [°C](Heatsink temp [°C]) [25]

Alarm word [Hex] (Alarm word [hex]) [26]

Control word [Hex] (Control word [Hex]) [27]

Warning word [Hex](warning word [Hex]) [28]

Extended status word [Hex](Ext. status [hex]) [29]

Communication option card warning(COMM OPT WARN [HEX]) [30]

Pulse count(PULSE COUNTER) [31]

Function:In this parameter you can select the data value thatyou wish to display in the LCP 2 control unit displayline 2 when the frequency converter is switched on.The display will also be included in the scrollbar in dis-play mode. In parameters 010-012 Display readout you

VLT® 2800 Series



can select a further three data values, which are dis-played in display line 1.

Description of choice:No readout can only be selected in parameters010-012 Small display readout.

Resulting reference [%] gives, as a percentage, the re-sulting reference in the range from Minimum refer-ence, RefMIN to Maximum reference, RefMAX.

Reference [unit] gives the resulting reference with unitHz in Open loop. In Closed loop the reference unit isselected in parameter 416 Process units.

Feedback [unit] gives the resulting signal value usingthe unit/scaling selected in parameter 414 Minimumfeedback, FBLOW , 415 Maximum feedback, FBHIGH and416 Process units.

Frequency [Hz] gives the output frequency of the fre-quency converter.

Output frequency x scaling [-] equals the present outputfrequency fM multiplied by the factor set in parameter008 Display scaling of output frequency .

Motor current [A] gives the phase current of the motormeasured as an effective value.

Torque [%] denotes the motor's present load in relationto the motor's rated torque.

Power [kW] gives the present power that the motor isabsorbing in kW.

Power [HP] gives the present power that the motor isabsorbing in HP.

Motor voltage[V] gives the voltage supplied to the mo-tor.

DC link voltage [V] gives the intermediate circuit voltageof the frequency converter.

Thermal load motor [%] gives the calculated/estimatedload on the motor. 100 % is the cut-out limit.

Thermal load [%] gives the calculated/estimated ther-mal load on the frequency converter. 100 % is the cut-out limit.

Running hours [Hours] gives the number of hours thatthe motor has tun since the last reset in parameter 619Reset of running hours counter.

Digital input [Binary code] gives the signal status fromthe 5 digital inputs (18, 19, 27, 29 and 33). Terminal18 corresponds to the bit on the extreme left. `0' = nosignal, `1' = signal connected.

Analog input 53 [V] gives the voltage value of terminal53.

Analog input 60 [mA] gives the present value of termi-nal 60.

Pulse reference [Hz] gives the reference in Hz connec-ted to terminal 33.

External reference [%] gives the sum of external refer-ences as a percentage (sum of analogue/pulse/serialcommunication) in the range from Minimum reference,RefMIN to Maximum reference, RefMAX.

Status word [Hex] gives one or several status condi-tions in a Hex code. See Serial communication in theVLT 2800 Design Guide for further information.

Heatsink temp.[°C] gives the present heatsink temper-ature of the frequency converter. The cut-out limit is90-100°C, while cutting back in occurs at 70 ± 5°C.

Alarm word [Hex] gives one or several alarms in hexcode. See Serial communication in the VLT 2800 De-sign Guide for further information.

Control word [Hex] gives the control word for the fre-quency converter. See Serial communication in theVLT 2800 Design Guide for further information.

Warning word [Hex] gives one or several warnings inhex code. See Serial communication in the VLT 2800Design Guide for further information.

Extended status word [Hex] gives one or several statusmodes in Hex code. See Serial communication in theVLT 2800 Design Guide for further information.

Communication option card warning [Hex] gives awarning word if there is a fault in the communicationbus. Only active if communication options are instal-led.If there are no communication options 0 Hex is dis-played.

Pulse count gives the number of pulses that the unithas registered.

010 Small display line 1.1

(DISPLAY LINE 1.1)

Value:See par. 009 Large dis-play readout

Analog input 53 [V][17]

Function:In this parameter, the first of three data values can beselected that is to be displayed in the LCP control unitdisplay, line 1, position 1. This is a useful function, e.g.when setting the PID regulator, as it gives a view ofprocess reactions to reference changes. The display

VLT® 2800 Series



Pro

gram

min

g

readout is activated by pushing the [DISPLAY STA-TUS] key.

Description of choice:See parameter 009 Large display readout.

011 Small display readout 1.2

(DISPLAY LINE 1.2)

Value:See parameter 009 Largedisplay readout Motor current [A][6]

Function:See the functional description given under parameter010 Small display readout.


012 Small display readout 1.3

(DISPLAY LINE 1.3)

Value:See parameter 009 Largedisplay readout Feedback [unit] [3]

Function:See the functional description given under parameter010 Small display readout.


013 Local control

(LOC CTRL/CONFIG.)

Value:

Local not active (DISABLE) [0]

Local control and open loop without slip com-pensation(LOC CTRL/OPEN LOOP) [1]

Remote-operated control and open loop with-out slip compensation(LOC+DIG CTRL) [2]

Local control as parameter 100(LOC CTRL/AS P100) [3]

Remote-operated control as parameter 100(LOC+DIG CTRL/AS P100) [4]

Function:This is where the required function is selected if, inparameter 002 Local/remote operation, Local opera-tion [1] has been chosen.

Description of choice:If Local not active [0] is selected, it is not possible toset a reference via parameter 003 Local reference.In order to enable a shift to Local not active [0], param-eter 002 Local/remote operation must be set to Remoteoperation [0].

Local control and open loop [1] is used if the motorspeed is to be set via parameter 003 Local reference.When this choice is made, parameter 100 Configura-tion automatically shifts to Speed regulation, openloop [0].

Remote-operated control and open loop [2] functionsin the same way as Local control and open loop [1];however, the frequency converter can also be control-led via the digital inputs.

For selections [1-2] control is shifted to open loop, noslip compensation.

Local control as parameter 100 [3] is used when themotor speed is to be set via parameter 003 Local ref-erence, but without parameter 100 Configuration auto-matically shifting to Speed regulation, open loop [0].

Remote-operated control as parameter 100 [4] worksthe same way as Local control as parameter 100 [3];however, the frequency converter can also be control-led via the digital inputs.

Shifting from Remote operation to Local operation inparameter 002 Local/remote operation, while this pa-rameter has been set to Remote-operated control andopen loop [1]: The present motor frequency and direc-tion of rotation will be maintained. If the present direc-tion of rotation does not respond to the reversing signal(negative reference), the reference will be set to 0.

Shifting from Local operation to Remote operation inparameter 002 Local/remote control, while this param-eter has been set to Remote-operated control and openloop [1]: The configuration selected in parameter 100Configuration will be active. The shift will be smooth.

Shifting from Remote control to Local control in param-eter 002 Local/remote operation, while this parameterhas been set to Remote-operated control as parameter100 [4]: the present reference will be maintained. If thereference signal is negative, the local reference will beset to 0.

VLT® 2800 Series



Shifting from Local operation to Remote operation inparameter 002 Local/remote operation, while this pa-rameter has been set to Remote operation: The localreference will be replaced by the remote-operated ref-erence signal.

014 Local stop

(LOCAL STOP)

Value:

Not active (DISABLE) [0]

Active (ENABLE) [1]

Function:In this parameter, the local [STOP]-key can be engag-ed or disengaged on the control panel and on the LCPcontrol panel.

Description of choice:If Not active [0] is selected in this parameter, the[STOP]-key will be inactive.

NB!If Not active [0] is selected, the motor can-not be stopped by means of the [STOP]-key.

015 Local jog

(LOCAL JOGGING)

Value:


Active (ENABLE) [1]

Function:In this parameter, the jog function on the LCP controlpanel can be engaged/disengaged.

Description of choice:If Not active [0] is selected in this parameter, the [JOG]-key will be inactive.

016 Local reversing

(LOCAL REVERSING)

Value:


Active (ENABLE) [1]

Function:In this parameter you can select/deselect the reversingfunction on the LCP control panel. The key can onlybe used if parameter 002 Local/remote operation is setto Local operation [1] and parameter 013 Localcon-trol to Local control, open loop [1] or Local control asparameter 100 [3].

Description of choice:If Disable [0] is selected in this parameter, the [FWD/REV] key will be disabled. See also parameter 200Output frequency range.

017 Local reset of trip

(LOCAL RESET)

Value:


Active (ENABLE) [1]

Function:In this parameter, the reset function on the controlpanel can be engaged/disengaged.

Description of choice:If Not active [0] is selected in this parameter, the resetfunction will be inactive.

NB!Select Not active [0], only if an externalreset signal has been connected via thedigital inputs.

VLT® 2800 Series



Pro

gram

min

g

018 Lock for data changes

(DATA CHANGE LOCK)

Value:

Not locked (NOT LOCKED) [0]

Locked (LOCKED) [1]

Function:In this parameter, it is possible to 'lock' the controls todisable data changes via the control keys.

Description of choice:If Locked [1] is selected, data changes in the parame-ters cannot be made; however, it will still be possibleto make data changes via serial communication. Pa-rameter 009-012 Display readout can be changed viathe control panel.

019Operating mode at power-up, local op-eration

(POWER UP ACTION)

Value:

Auto restart, use saved reference(AUTO RESTART) [0]

Forced stop, use saved reference(LOCAL=STOP) [1]

Forced stop, set ref. to 0(LOCAL=STOP, REF=0) [2]

Function:Setting of the required operating mode when the mainsvoltage is engaged. This function can only be active ifLocal operation [1] has been selected in parameter002 Local/remote operation.

Description of choice:Auto restart, use saved ref. [0] is selected if the fre-quency converter is to start using the local reference(set in parameter 003 Local reference) and the start/stop state given via the control keys immediately priorto the mains voltage being cut out.Forced stop, use saved ref. [1] is selected if the fre-quency converter is to remain stopped when the mainsvoltage is engaged, until the [START]-key is activated.After a start command the motor speed is ramped upto the saved reference in parameter 003 Local refer-ence.Forced stop, set ref. to 0 [2] is selected if the frequencyconverter is to remain stopped when the mains voltageis cut back in. Parameter 003 Local reference is to bezeroed.

NB!In remote operation (parameter 002 Lo-cal/remote operation) the start/stop stateat the time of mains connection will de-pend on the external control signals. IfPulse start [8] is selected in parameter 302Digital input, the motor will remain stoppedafter mains connection.

020 Hand operation

(HAND OPERATION)

Value:


Active (ENABLE) [1]

Function:In this parameter you can select whether it should bepossible or not to switch between Auto- and Handmode. In Auto mode the frequency converter is con-trolled by external signals whereas the frequency con-verter in Hand mode is controlled via a local referencedirectly from the control unit.

Description of choice:If Not active [0] is selected in this parameter, the Handmode function will be inactive. If Active [1] is selectedyou can switch between Auto- and Hand mode. Forfurther information, see the Control Unit section.

024 Userdefined Quick Menu

(user quickmenu)

Value:

Not active (Disable) [0]

Active (Enable) [1]

Function:In this parameter you can select the standard setup ofthe Quick menu key on the control panel and the LCP2 control panel.Using this function, in parameter 025 Quick Menu set-up the user can select up to 20 parameters for theQuick Menu key.

Description of choice:If not active [0] is selected, the standard setup of theQuick Menu key is active.

VLT® 2800 Series



If Active [1] is selected, the user-defined Quick Menuis active.

025 Quick Menu setup

(quick menu setup)

Value:[Index 1 - 20] Value: 0 - 999 000

Function:In this parameter you define which parameters are re-quired in the Quick Menu when parameter 024 User-defined Quick Menu is set to Active [1].Up to 20 parameters can be selected for the user-de-fined Quick Menu.

NB!Please note that this parameter can onlybe set using an LCP 2 control panel. SeeOrder form.

Description of choice:The Quick Menu is set up as follows:

1. Select parameter 025 Quick Menu setup andpress [CHANGE DATA].

2. Index 1 indicates the first parameter in QuickMenu. You can scroll between the indexnumbers using the [+ / -] keys. Select Index1.

3. Using [< >] you can scroll between the threefigures. Press the [<] key once ad the lastnumber in the parameter number can be se-lected using the [+ / -] keys. Set Index 1 to100 for parameter 100 Configuration.

4. Press [OK] when Index 1 has been set to 100.

5. Repeat steps 2 - 4 until all parameters re-quired have been set to the Quick Menu key.

6. Press [OK] to complete the Quick Menu set-up.

If parameter 100 Configuration is selected at Index 1,Quick Menu will start with this parameter every timeQuick Menu is activated.

Please note that parameter 024 User-defined QuickMenu and parameter 025 Quick Menu setup are resetto the factory setting during initialisation.

VLT® 2800 Series


Pro

gram

min

g

Load and Motor

100 Configuration

(Configuration)

Value:

Speed control, open loop(SPEED OPEN LOOP) [0]

Speed control, closed loop(SPEED CLOSED LOOP) [1]

Process control, closed loop(PROCESS CLOSED LOOP) [3]

Function:This parameter is used to select the configuration towhich the frequency converter is to be adapted. Thismakes adaptation to a given application simple, sincethe parameters not used in a given configuration arehidden (not active).

Description of choice:If Speed control, open loop [0] is selected, normalspeed control is obtained (without feedback signal)with automatic load and slip compensation to ensurea constant speed at varying loads. Compensations areactive, but may be disabled in parameter 134 Loadcompensation and parameter 136 Slip compensationas required.

If Speed control, closed loop [1] is selected, betterspeed accuracy is obtained. A feedback signal mustbe added, and the PID regulator must be set in pa-rameter group 400 Special functions.

If Process control, closed loop [3] is selected, the in-ternal process regulator is activated to enable precisecontrol of a process in relation to a given process sig-nal. The process signal can be set to the relevantprocess unit or as a percentage. A feedback signalmust be added from the process and the process reg-ulator must be set in parameter group 400 Specialfunctions. Process closed loop is not active if a Devi-ceNet card is mounted and Instance 20/70 or 21/71 ischosen in parameter 904 Instance types.

101 Torque characteristic

(TORQUE CHARACT)

Value:

Constant torque(Constant torque) [1]

Variable torque low(torque: low) [2]

Variable torque medium(torque: med) [3]

Variable torque high(torque: high) [4]

Variable torque low with CT start(VT LOW CT START) [5]

Variable torque medium with CT start(VT MED CT START) [6]

Variable torque high with CT start(VT HIGH CT START) [7]

Special motor mode(Special motor mode) [8]

CT = Constant torque

Function:This parameter enables a choice of principle for adap-tation of the U/f ratio of the frequency converter to thetorque characteristic of the load. See par. 135 U/f ratio.

Description of choice:If Constant torque [1] is selected, a load-dependent U/f characteristic is obtained, in which output voltage andoutput frequency are increased at increasing loads inorder to maintain constant magnetization of the motor.

Select Variable torque low [2], Variable torque medium[3] or Variable torque high [4], if the load is square (cen-trifugal pumps, fans).Variable torque - low with CT start [5], - medium withCT start [6] or high with CT start [7], are selected if youneed a greater breakaway torque than can be ach-ieved with the three first characteristics.

NB!Load and slip compensation are not activeif variable torque or special motor modehave been selected.

VLT® 2800 Series



Select Special motor mode [8], if a special U/f settingis needed that is to be adapted to the present motor.The break points are set in parameters 423-428 Volt-age/frequency .

NB!Please note that if a value set in the name-plate parameters 102-106 is changed,there will be an automatic change of pa-rameter 108 Stator resistance and 109Stator reactance.

102 Motor power PM,N

(motor power)

Value:0.25 - 22 kW Depends on unit

Function:Here you must set a power value [kW] PM,N, corre-sponding to the motor's rated power. The factory setsa rated power value [kW] P M,N, that depends on thetype of unit.

Description of choice:Set a value that matches the nameplate data on themotor. Settings between one size below and one sizeover the factory setting are possible.

103 Motor voltage UM,N

(MOTOR VOLTAGE)

Value:For 200 V units: 50 - 999 V 230 V

For 400 V units: 50 - 999 V 400 V

Function:This is where to set the rated motor voltage UM,N foreither star Y or delta Δ.

Description of choice:Select a value that corresponds to the nameplate dataon the motor, regardless of the frequency converter'smains voltage.

104 Motor frequency fM,N

(MOTOR FREQUENCY)

Value:24-1000 Hz 50 Hz

Function:This is where to select the rated motor frequencyfM,N.

Description of choice:Select a value that corresponds to the nameplate dataon the motor.

105 Motor current IM,N

(MOTOR CURRENT)

Value:0,01 - IMAX Depends on choice of motor

Function:The nominal, rated current of the motor IM,N forms partof the frequency converter calculation of features suchas torque and motor thermal protection.

Description of choice:Set a value that corresponds to the nameplate data onthe motor. Set the motor current IM,N taking into ac-count whether the motor is star-connected Y or delta-connected Δ.

106 Rated motor speed

(MOTOR NOM. SPEED)

Value:100 - fM,N x 60 (max.60000 rpm)

Depends on parame-ter 104 Motor frequency,

fM,N

Function:This is where to set the value that corresponds to therated motor speed nM,N that can be seen from thenameplate data.

Description of choice:Select a value that corresponds to the nameplate dataon the motor.

VLT® 2800 Series



Pro

gram

min

g

NB!The max. value equals fM,N x 60. fM,N to beset in parameter 104 Motor frequency,fM,N .

107 Automatic motor tuning, AMT

(auto motor tun.)

Value:

Optimisation off (AMT off) [0]

Optimisation on (AMT start) [2]

Function:

NB!AMT is not possible on VLT 2880-82.

Automatic motor tuning is an algorithm that measuresstator resistance RS without the motor axle turning.This means that the motor is not delivering any torque.AMT can be used with benefit when initialising unitswhere the user wishes to optimise adjustment of thefrequency converter to the motor being used. This isused in particular when the factory setting does notsufficiently cover the motor.

For the best possible tuning of the frequency converterit is recommended that AMT is performed on a coldmotor. It should be noted that repeated AMT runs cancause heating of the motor, resulting in an increase inthe stator resistance RS. As a rule, however, this is notcritical.

AMT is performed as follows:

Start AMT:

1. Give a STOP signal.

2. Parameter 107 Automatic motor tuning is setat value [2] Optimisation on.

3. A START signal is given and parameter 107Automatic motor tuning is reset to [0] whenAMT has been completed.

Complete AMT:AMT is completed by giving a RESET signal. Param-eter 108 Stator resistance, Rs is updated with theoptimised value.

Interrupting AMT:AMT can be interrupted during the optimisation pro-cedure by giving a STOP signal.

When using the AMT function the following pointsshould be observed:

- For AMT to be able to define the motor pa-rameters as well as possible, the correct typeplate data for the motor connected to the fre-quency converter must be keyed into param-eters 102 to 106.

- Alarms will appear in the display if faults ariseduring tuning of the motor.

- As a rule the AMT function will be able tomeasure the RS values for motors that are 1-2times larger or smaller than the frequencyconverter's nominal size.

- If you wish to interrupt automatic motor tun-ing, press the [STOP/RESET] key.

NB!AMT may not be performed on motorsconnected in parallel, nor may setupchanges be made while AMT is running.The procedure for AMT controlled fromthe SLCP:See section entitled Control unit.

Description of choice:Select Optimisation on [2] if you want the frequencyconverter to perform automatic motor tuning.

108 Stator resistance RS

(STATOR RESISTAN)

Value:0.000 - X.XXX Ω Depends on choice of motor

Function:After setting of parameters 102-106 Nameplate data, anumber of adjustments of various parameters is car-ried out automatically, including stator resistance RS.A manually entered RS must apply to a cold motor. Theshaft performance can be improved by fine-tuning RS

and XS, see procedure below.

NB!Parameters 108 Stator resistance RS and109 Stator reactance XS are normally notto be changed if nameplate data has beenset.

Description of choice:RS can be set as follows:

VLT® 2800 Series



1. Use the factory settings of RS which the fre-quency converter itself chooses on the basisof the motor nameplate data.

2. The value is stated by the motor supplier.

3. The value is obtained through manual meas-urements: RS can be calculated by measur-ing the resistance RPHASE-PHASE between twophase terminals. Where RPHASE-PHASE is low-er than 1-2 Ohms (typical for motors > 5.5kW, 400 V), a special Ohm-meter should beused (Thomson-bridge or similar). RS = 0.5 xRPHASE-PHASE .

4. RS is set automatically when AMT has beencompleted. See parameter 107 Auto motoradaption.

109 Stator reactance XS

(STATOR REACTANCE)

Value:0.00 - X,XX Ω Depends on choice of motor

Function:After setting of parameters 102-106 Nameplate data, anumber of adjustments of various parameters aremade automatically, including stator reactance XS.The shaft performance can be improved by fine-tuningRS and XS, see procedure below.

Description of choice:XS can be set as follows:


2. The value is obtained through manual meas-urements XS is obtained by connecting a mo-tor to mains and measuring the phase-phasevoltage U M and the idle current φ .

Xs =UM

3 × Iϕ−

XL2

XL: See parameter 142.3. Use the factory settings of XS which the fre-

quency converter itself chooses on the basisof the motor nameplate data.

117 Resonance damping

(resonance damping)

Value:

OFF - 100% [OFF - 100]

OFF % [OFF]

Function:It is possible to optimise the resonance damping in CTmode. The grade of the influence is adjusted in thisparameter.The value may be set between 0% (OFF) and 100%.100% corresponds to 50% reduction of U/F ratio.Default value is OFF.

Internal settings (fixed):The resonance filter is active from 10% of nominalspeed and above.In this case 5Hz and above.Speed to go from 0 to nominal flux level: 500msSpeed to go from nominal to 0 flux level: 500ms

Description of functionality:The filter monitors the active motor current andchanges the motor voltage according to the figure be-low. The filter reacts on levels referring to the nominalmotor current.

If the active motor current is below 10%, the motorvoltage will be decreased by the speed mentionedabove until the voltage reaches the setting for Par.117. If the active motor current comes over 20% thevoltage will be increased by the above mentionedspeed. If the active motor current reaches 40% themotor voltage will be increased immediately to normalmotor voltage.The reduction in motor voltage depends on the pa-rameter 117 setting.

Description of choice:Set the grade of Motor current [Imact] influence on theU/F ratio between 0% (OFF) and 100%. 100% corre-sponds to 50% reduction of U/F ratio. Default value isOFF.

VLT® 2800 Series



Pro

gram

min

g

119 High start torque

(High start torq.)

Value:0.0 - 0.5 sec. 0.0 sec.

Function:To ensure a high start torque approx. 1.8 x IINV. can bepermitted for max. 0.5 sec. The current is, however,limited by the frequency converter's (inverter's) safetylimit. 0 sec. corresponds to no high start torque.

Description of choice:Set the necessary time for which a high start torque isrequired.

120 Start delay

(START DELAY)

Value:0.0 - 10.0 sec. 0.0 sec.

Function:This parameter enables a delay of the start-up timeafter the conditions for start have been fulfilled. Whenthe time has passed, the output frequency will start byramping up to the reference.

Description of choice:Set the necessary time before commencing to accel-erate.

121 Start function

(START FUNCTION)

Value:

DC hold during start delay time(DC HOLD/DELAY TIME) [0]

DC brake during start delay time(DC BRAKE/DELAY TIME) [1]

Coasting during start delay time(COAST/DELAY TIME) [2]

Start frequency/voltage clockwise(CLOCKWISE OPERATION) [3]

Start frequency/voltage in reference direction(VERTICAL OPERATION) [4]

Function:This is where to choose the required mode during thestart delay time (parameter 120 Start delay time).

Description of choice:Select DC hold during start delay time [0] to energizethe motor with a DC hold voltage during the start delaytime. Set voltage in parameter 137 DC hold voltage.

Choose DC brake during start delay time [1] to energizethe motor with a DC brake voltage during the start de-lay time. Set voltage in parameter 132 DC brake volt-age.

Choose Coasting during start delay time [2] and themotor will not be controlled by the frequency converterduring the start delay time (inverter turned off).

Choose Start frequency/voltage clockwise [3] to obtainthe function described in parameter 130 Start frequen-cy and 131 Voltage at start during start delay time.Regardless of the value assumed by the referencesignal, the output frequency equals the setting in pa-rameter 130 Start frequency and the output voltage willcorrespond to the setting in parameter 131 Voltage atstart .This functionality is typically used in hoist applications.It is used in particular in applications in which a coneanchor motor is applied, where the direction of rotationis to start clockwise followed by the reference direc-tion.

Select Start frequency/voltage in reference direction [4]to obtain the function described in parameter 130 Startfrequency and 131 Voltage at start during the start de-lay time.The direction of rotation of the motor will always followin the reference direction. If the reference signalequals zero, the output frequency will equal 0 Hz, whilethe output voltage will correspond to the setting in pa-rameter 131 Voltage at start. If the reference signal isdifferent from zero, the output frequency will equal pa-rameter 130 Start frequency and the output voltage willequal parameter 131 Voltage at start. This functionalityis used typically for hoist applications with counter-weight. It is used in particular for applications in whicha cone anchor motor is applied. The cone anchor mo-tor can break away using parameter 130 Start frequen-cy and parameter 131 Voltage at start.

VLT® 2800 Series



122 Function at stop

(FUNCTION AT STOP)

Value:

Coasting (COAST) [0]

DC hold (DC HOLD) [1]

Function:This is where to choose the function of the frequencyconverter after the output frequency has become lowerthan the value in parameter 123 The min. frequency foractivation of function at stop or after a stop commandand when the output frequency has been rampeddown to 0 Hz.

Description of choice:Select Coasting [0] if the frequency converter is to 'letgo' of the motor (inverter turned off).

Select DC hold [1] if parameter 137 DC hold voltage isto be activated.

123Min. frequency for activation of func-tion at stop

(MIN.F.FUNC.STOP)

Value:0,1 - 10 Hz 0,1 Hz

Function:In this parameter, the output frequency is set at whichthe function selected in parameter 122 Function atstop is to be activated.

Description of choice:Set the required output frequency.

NB!If parameter 123 is set higher than param-eter 130, then the start delay function (pa-rameter 120 and 121) will be skipped.

NB!If parameter 123 is set too high, and DChold has been chosen in parameter 122,the output frequency will jump to the valuein parameter 123 without ramping up. Thismay cause an overcurrent warning /alarm.

126 DC brake time

(DC BRAKING TIME)

Value:0 - 60 sec. 10 sec

Function:In this parameter, the DC brake time is set at whichparameter 132 DC brake voltage is to be active.

Description of choice:Set the required time.

127 DC brake cut-in frequency

(DC BRAKE CUT-IN)

Value:0.0 (OFF) - par. 202Output frequency high limit, fMAX OFF

Function:In this parameter, the DC brake cut-in frequency is setat which the DC brake is to be activated in connectionwith a stop command.

Description of choice:Set the required frequency.

128 Thermal motor protection

(MOT.THERM PROTEC)

Value:

No protection (NO PROTECTION) [0]

Thermistor warning(THERMISTOR WARN) [1]

Thermistor trip (THERMISTOR TRIP) [2]

ETR warning 1 (ETR WARNING 1) [3]

ETR trip 1 (ETR TRIP 1) [4]







Function:The frequency converter can monitor the motor tem-perature in two different ways:

VLT® 2800 Series



Pro

gram

min

g

- Via a PTC thermistor that is mounted on themotor. The thermistor is connected betweenterminal 50 (+10V) and one of the digital inputterminals 18, 19, 27 or 29. See parameter300 Digital inputs.

- Thermal load calculation (ETR - ElectronicThermal Relay), based on present load andtime. This is compared with the rated motorcurrent IM,N and rated motor frequency f M,N.The calculations take into account the needfor lower loading at low speeds due to themotor's internal ventilation being reduced.

ETR functions 1-4 do not begin to calculate the loaduntil you switch to the Setup in which they have beenselected. This means that you can use the ETR func-tion even when changing between two or more motors.

Description of choice:Select No protection [0] if you do not want a warningor trip when a motor is overloaded.Select Thermistor warning [1] if you want a warningwhen the connected thermistor becomes too hot.Select Thermistor trip [2] if you want a trip when theconnected thermistor becomes too hot.Select ETR warning 1-4 if you want a warning when themotor is overloaded according to the calculations. Youcan also programme the frequency converter to give awarning signal via one of the digital outputs. SelectETR Trip 1-4 if you want a trip when the motor is over-loaded according to the calculations.

NB!This function cannot protect the individualmotors in the case of motors linked in par-allel.

130 Start frequency

(Start frequency)

Value:0.0 - 10.0 Hz 0.0 Hz

Function:The start frequency is active for the time set in param-eter 120 Start delay, after a start command. The outputfrequency will 'jump' to the next preset frequency. Cer-tain motors, such as conical anchor motors, need anextra voltage/start frequency (boost) at start to disen-gage the mechanical brake. To achieve this parame-ters 130 Start frequency and 131 Initial voltage areused.

Description of choice:Set the required start frequency. It is a preconditionthat parameter 121 Start function, is set to Start fre-quency/voltage clockwise [3] or Start frequency voltagein reference direction [4] and that in parameter 120 Startdelay a time is set and a reference signal is present.

NB!If parameter 123 is set higher than param-eter 130, the start delay function (param-eter 120 and 121) will be skipped.

131 Initial voltage

(INITIAL VOLTAGE)

Value:0.0 - 200.0 V 0.0 V

Function:Initial voltage is active for the time set in parameter 120Start delay , after a start command. This parameter canbe used for example for lifting/dropping applications(conical anchor motors).

Description of choice:Set the required voltage necessary to cut out the me-chanical brake. It is assumed that parameter 121 Startfunction, is set to Start frequency/voltage clockwise [3]or Start frequency/voltage in reference direction [4] andthat in parameter 120 Start delay a time is set, and thata reference signal is present.

VLT® 2800 Series



132 DC brake voltage

(DC BRAKE VOLTAGE)

Value:0 - 100% of max. DC brake voltage 0%

Function:In this parameter, the DC brake voltage is set which isto be activated at stop when the DC brake frequencyset in parameter 127 DC brake cut-in frequency isreached, or if DC braking inverse is active via a digitalinput or via serial communication. Subsequently, theDC brake voltage will be active for the time set in pa-rameter 126 DC brake time.

Description of choice:To be set as a percentage value of the max. DC brakevoltage, which depends on the motor.

133 Start voltage

(START VOLTAGE)

Value:0.00 - 100.00 V Depends on unit

Function:A higher start torque can be obtained by increasing thestart voltage. Small motors (< 1.0 kW) normally requirea high start voltage.

Description of choice:The factory setting will be suitable for must applica-tions, the value may need to be increase gradually forhigh torque application.

Warning: If the use of start voltage is ex-aggerated, this may lead to over-energiz-ing and overheating of the motor and thefrequency converter may cut out.

134 Load compensation

(LOAD COMPENSATIO)

Value:0.0 - 300.0% 100.0%

Function:In this parameter, the load characteristic is set. By in-creasing the load compensation, the motor is given anextra voltage and frequency supplement at increasingloads. This is used e.g. in motors/applications in whichthere is a big difference between the full-load currentand idle-load current of the motor.

NB!If this value is set too high, the frequencyconverter may cut out because of over-current.

Description of choice:If the factory setting is not adequate, load compensa-tion must be set to enable the motor to start at the givenload.

Warning: Should be set to 0% in connec-tion with synchronous and parallel-cou-pled motors and in the case of quick loadchanges. Too high load compensationmay lead to instability.

135 U/f-ratio

(U/f RATIO)

Value:0.00 - 20.00 at Hz Depends on unit

Function:This parameter enables a shift in the ratio betweenoutput voltage (U) and output frequency (f) linearly, soas to ensure correct energizing of the motor and thusoptimum dynamics, accuracy and efficiency. The U/f-ratio only affects the voltage characteristic if a selec-tion has been made of Constant torque [1] parameter101 Torque characteristic.

Description of choice:The U/f-ratio is only to be changed if it is not possibleto set the correct motor data in parameter 102-109.The value programmed in the factory settings is basedon idle operation.

VLT® 2800 Series



Pro

gram

min

g

136 Slip compensation

(SLIP COMP.)

Value:-500 - +500% of rated slip compensation 100%

Function:Slip compensation is calculated automatically, on thebasis of such data as the rated motor speed nM,N. Inthis parameter, the slip compensation can be fine-tuned, thereby compensating for tolerances on thevalue for n M,N. Slip compensation is only active if aselection has been made of Speedregulation, openloop [0] in parameter 100 Configuration and Constanttorque [1] in parameter 101 Torque characteristic.

Description of choice:Key in a % value.

137 DC hold voltage

(DC HOLD VOLTAGE)

Value:0 - 100% of max. DC hold voltage 0%

Function:This parameter is used to keep the motor (holding tor-que) at start/stop.

Description of choice:This parameter can only be used if a selection hasbeen made of DC hold in parameter 121 Start func-tion or 122 Function at stop . To be set as a percentagevalue of the max. DC hold voltage, which depends onthe choice of motor.

138 Brake cut out value

(Brake cut out)

Value:0.5 - 132.0/1000.0 Hz 3.0 Hz

Function:Here you can select the frequency at which the exter-nal brake is released, via the output defined in param-eter 323 Relay output 1-3 or 341 Digital output, terminal46.


139 Brake cut in frequency

(Brake cut in)

Value:0.5 - 132.0/1000.0 Hz 3.0 Hz

Function:Here you can select the frequency at which the exter-nal brake is activated; this takes place via the outputdefined in parameter 323 Relay output 1-3 or 341 Dig-ital output terminal 46.


140 Current, minimum value

(CURRENT MIN VAL)

Value:0 % - 100 % of inverter output current 0 %

Function:This is where the user selects the minimum motor cur-rent running for the mechanical brake to be released.Current monitoring is only active from stop until thepoint when the brake is released.

Description of choice:This is an extra safety precaution, aimed at guaran-teeing that the load is not lost during start of a lifting/lowering operation.

142 Leakage reactance XL

(LEAK. REACTANCE)

Value:0.000 - XXX,XXX Ω Depends on choice of mo-

torXL is sum of rotor and stator

leakage reactance.

Function:After setting of parameters 102-106 Nameplate data, anumber of adjustments of various parameter is madeautomatically, including the leakage reactance XL. Theshaft performance can be improved by fine-tuning theleakage reactance XL.

NB!Parameter 142 The leakage reactance XL

is normally not to be changed if the name-plate data have been set, parameters102-106.

VLT® 2800 Series



Description of choice:XL can be set as follows:


2. Use the factory settings of XL which the fre-quency converter itself chooses on the basisof the motor nameplate data.

143 Internal fan control

(fan control)

Value:

Automatic (automatic) [0]

Always switched on (always on) [1]

Always switched off (always off) [2]

Function:This parameter can be set so that the internal fan isautomatically switched on and off. You can also set theinternal fan to be permanently switched on or off.

Description of choice:If Automatic [0] is selected, the internal fan is switchedon or off depending on the ambient temperature andthe loading of the frequency converter.If Always switched on [1] Always switched off [2] areselected, the internal fan will be permanently switchedon or off.

NB!If Always switched off [2] is selected incombination with high switch frequency,long motor cables or high output power,the frequency converter's life span is re-duced.

144 Gain AC brake

(Gain AC brake)

Value:1.00 - 1.50 1.30

Function:This parameter is used to set the AC brake. Using par.144 it is possible to adjust the size of the generatortorque that can be applied to the motor without the in-termediate circuit voltage exceeding the warning level.

Description of choice:The value is increased if a greater possible brake tor-que is required. If 1.0 is selected, this corresponds tothe AC brake being inactive.

NB!If the value in par. 144 is increased, themotor current will simultaneously increasesignificantly when generator loads are ap-plied. The parameter should therefore on-ly be changed if it is guaranteed duringmeasurement that the motor current in alloperating situations will never exceed themaximum permitted current in the motor.Please note: that the current cannot beread out from the display.

146 Reset voltage vector

(RESET VECTOR)

Value:

*Off (OFF) [0]

Reset (RESET) [1]

Function:When the voltage vector is reset it is set to the samestarting point each time a new process commences.

Description of choice:Select reset (1) when running unique processes eachtime they arise. This will enable repetitive precisionwhen stopping to be improved. Select Off (0) for ex-ample for lifting/lowering operations or synchronousmotors. It is an advantage that the motor and the fre-quency converter are always synchronized.

VLT® 2800 Series



Pro

gram

min

g

References & Limits

200 Output frequency range

(OUT FREQ. RNG/ROT)

Value:

Only clockwise, 0 - 132 Hz(132 Hz CLOCKWISE) [0]

Both directions, 0 - 132 Hz(132 Hz BOTH DIRECT) [1]

Anti-clockwise only, 0 - 132 Hz(132 Hz COUNTER CLOCK) [2]

Clockwise only, 0 - 1000 Hz(1000 Hz CLOCK WISE) [3]

Both directions, 0 - 1000 Hz(1000 Hz BOTH DIRECT) [4]

Anti-clockwise only, 0 - 1000 Hz(1000 Hz COUNTER CLOCK) [5]

Function:This parameter guarantees protection against unwan-ted reversing. Furthermore, the maximum output fre-quency can be selected that is to apply regardless ofthe settings of other parameters. This parameter hasno function if Process regulation, closed loop has beenselected in parameter 100 Configuration.

Description of choice:Select the required direction of rotation as well as themaximum output frequency. Please note that if Clock-wise only [0]/[3] or Anti-clockwise only [2]/[5] is selec-ted, the output frequency will be limited to the rangefMIN-f MAX. If Both directions [1]/[4] is selected, the out-put frequency will be limited to the range ± f MAX (theminimum frequency is of no significance).

201 Output frequency low limit, fMIN

(MIN OUTPUT FREQ)

Value:0.0 - fMAX 0.0 Hz

Function:In this parameter, a minimum motor frequency limitcan be selected that corresponds to the minimumspeed at which the motor is allowed to run. If Both di-rections has been selected in parameter 200 Outputfrequency range, the minimum frequency is of no sig-nificance.

Description of choice:The value chosen can range from 0.0 Hz to the fre-quency set in parameter 202 Output frequency highlimit, fMAX .

202 Output frequency high limit, fMAX

(max. output freq)

Value:fMIN - 132/1000 Hz (par. 200 Output fre-quency range) 132 Hz

Function:In this parameter, a maximum output frequency limitcan be selected that corresponds to the highest speedat which the motor is allowed to run.

NB!The output frequency of the frequencyconverter can never assume a value high-er than 1/10 of the switching frequency(parameter 411 Switching frequency).

Description of choice:A value can be selected from fMIN to the value chosenin parameter 200 Output frequency range.

VLT® 2800 Series



203 Reference range

(REFERENCE RANGE)

Value:

Min. reference - Max reference (min - max) [0]

-Max. reference - Max. reference(-max - +max) [1]

Function:In this parameter you select whether the referencesignal must be positive or whether it can be both pos-itive and negative. The minimum limit may be a nega-tive value, unless in parameter 100 Configuration aselection has been made of Speed regulation, closedloop. You should select Min ref. - Max. ref. [0], if Proc-ess regulation, closed loop [3] has been selected inparameter 100 Configuration.

Description of choice:Select the required range.

204 Minimum reference, Ref MIN

(Min.reference)

Value:Par. 100 Config. = Open loop[0].-100,000.000 - par. 205 RefMAX 0.000 Hz

Par. 100 Config. = Closedloop [1]/[3].-Par. 414 Mini-mum feedback - par. 205RefMAX 0.000 rpm/par 416

Function:Minimum reference is an expression of the minimumpossible value of the total of all references. If in pa-rameter 100 Configuration, Speed regulation, closedloop [1] or Process regulation, closed loop [3] is selec-ted, the minimum reference is limited by parameter414 Minimum feedback. Minimum reference is ignoredif the local reference is active.

The reference unit can be defined from the followingtable:

Par. 100 Configuration UnitOpen loop [0] HzSpeed reg, closed loop [1] rpmProcess reg, closed loop [3] Par. 416

Description of choice:The minimum reference is preset if the motor has torun at a minimum speed, regardless of whether theresulting reference is 0.

205 Maximum reference, RefMAX

(max.reference)

Value:Par. 100 Config. = Open loop[0].Par. 204 RefMIN - 1000.000 Hz 50.000 Hz

Par. 100 Config. = Closedloop [1]/[3]. Par. 204RefMIN - Par. 415 Max.feedback 50.000 rpm/par 416

Function:The maximum reference gives the highest value thatcan be assumed by the sum of all references. If Closedloop [1]/[3] is selected in parameter 100 Configurationthe maximum reference cannot exceed the value inparameter 415 Maximum feedback.Maximum reference is ignored if the local reference isactive.

The reference unit can be defined from the followingtable:

Par. 100 Configuration UnitOpen loop [0] HzSpeed reg, closed loop [1] rpmProcess reg, closed loop [3] Par. 416

Description of choice:Maximum reference is set, if the speed of the motor isto be max. the set value, regardless of the whether theresulting reference is greater than the maximum ref-erence.

206 Ramp type

(Ramp type)

Value:

Linear (Linear) [0]

Sin shaped (SIN SHAPED) [1]

Sin2 shaped (S-SHAPED 2) [2]

Function:You can choose between a linear, an S-shaped and

an S2 ramp process.

Description of choice:Select the required ramp type depending on the re-quired acceleration/deceleration process.

VLT® 2800 Series



Pro

gram

min

g

207 Ramp-up time 1

(ramp-up time 1)

Value:0.02 - 3600.00 sec 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:The ramp-up time is the acceleration time from 0 Hz tothe rated motor frequency fM,N (parameter 104 Motorfrequency, fM,N ). It is assumed that the output currentwill not reach the current limit (set in parameter 221Current limit ILIM ).

Description of choice:Set the required ramp-up time.

208 Ramp-down time 1

(ramp down time 1)

Value:0.02 - 3600.00 sec 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:The ramp-down time is the deceleration time from therated motor frequency fM,N (parameter 104 Motor fre-quency, f M,N ) to 0 Hz, provided no overvoltage arisesin the inverter because of generating operation of themotor.

Description of choice:Set the required ramp-down time.

209 Ramp-up time 2

(ramp up time 2)

Value:0.02 - 3600.00 sec. 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:See description of parameter 207 Ramp-up time 1.

Description of choice:Set the required ramp-up time. Shift from ramp 1 toramp 2 by activating Ramp 2 via a digital input.

210 Ramp-down time 2

(RAMP DOWN TIME 2)

Value:0.02 - 3600.00 sec. 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:See description of parameter 208 Ramp-down time 1.

Description of choice:Set the required ramp-down time. Shift from ramp 1 toramp 2 by activating Ramp 2 via a digital input.

211 Jog ramp time

(jog ramp time)

Value:0.02 - 3600.00 sec. 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:The jog ramp time is the acceleration/decelerationtime from 0 Hz to the rated motor frequency fM,N (pa-rameter 104 Motor frequency, fM,N ). It is assumed thatthe output current will not reach the current limit (set inparameter 221 Current limit ILIM ).

VLT® 2800 Series



The jog ramp time starts if a jog-signal is given via theLCP control panel, one of the digital inputs or the serialcommunication port.

Description of choice:Set the required ramp time.

212 Quick-stop ramp-down time

(Q STOP RAMP TIME)

Value:0.02 - 3600.00 sec. 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:The quick-stop ramp-down time is the decelerationtime from the rated motor frequency to 0 Hz, providedno overvoltage arises in the inverter because of gen-erating operation of the motor, or if the generatedcurrent exceeds the current limit in parameter 221Current limit ILIM . Quick-stop is activated via one of thedigital inputs or the serial communication.

Description of choice:Set the required ramp-down time.

213 Jog frequency

(Jog frequency)

Value:0.0 - Par. 202 Output frequency highlimit, f MAX 10.0 Hz

Function:Jog frequency fJOG means a fixed output frequencythat the frequency converter supplies to the motorwhen the Jog function is activated. Jog can be activa-ted via the digital inputs, serial communication or viathe LCP control panel, on the condition that this is ac-tive in parameter 015 Local jog.


214 Reference function

(Ref function)

Value:

Sum (sum) [0]

Relative (relative) [1]

External/preset (external/preset) [2]

Function:It is possible to define how preset references are to beadded to the other references; for this purpose, useSum or Relative. It is also possible by using the Exter-nal/preset to select whether a shift between externalreferences and preset references is required.External reference is the sum of the analogue refer-ences, pulse references and any references from se-rial communication.

Description of choice:If Sum [0] is selected, one of the adjusted preset ref-erences (parameters 215-218 Preset reference) issummarized as a percentage of the reference range(RefMIN - RefMAX), added to the other external referen-ces.If Relative [1] is selected, one of the added preset ref-erences (parameters 215-218 Preset reference) issummarized as a percentage of the sum of presentexternal references.If External/preset [2] is selected, it is possible via a dig-ital input to shift between external references or presetreferences. Preset references will be a percentagevalue of the reference range.

NB!If Sum or Relative is selected, one of thepreset references will always be active. Ifthe preset references are to be without in-fluence, they must be set to 0% (factorysetting).

215 Preset reference 1 (PRESET REF. 1)216 Preset reference 2 (PRESET REF. 2)217 Preset reference 3 (PRESET REF. 3)218 Preset reference 4 (PRESET REF. 4)

Value:-100.00% - +100.00% 0.00%

of the reference range/external reference

Function:Four different preset references can be programmedin parameters 215-218 Preset reference.The preset reference is stated as a percentage of thereference range (RefMIN - Ref MAX) or as a percentageof the other external references, depending on thechoice made in parameter 214 Reference function.The choice between preset references can be madevia the digital inputs or via serial communication.

VLT® 2800 Series



Pro

gram

min

g

Preset ref., msb Preset ref. lsb0 0 Preset ref. 10 1 Preset ref. 21 0 Preset ref. 31 1 Preset ref. 4

Description of choice:Set the preset reference(s) that is/are to be the op-tions.

219 Catch up/Slow down reference

(Catch up/Slw dwn)

Value:0.00 - 100% of the given reference 0.00%

Function:In this parameter, the percentage value can be setwhich will either be added to or deducted from the re-mote-controlled references.The remote-controlled reference is the sum of presetreferences, analogue references, pulse reference andany references from serial communication.

Description of choice:If Catch up is active via a digital input, the percentagevalue in parameter 219 Catch up/Slow down refer-ence will be added to the remote-controlled reference.If Slow down is active via a digital input, the percentagevalue in parameter 219 Catch up/Slow down refer-ence will be deducted from the remote-controlled ref-erence.

221 Current limit, I LIM

(current limit)

Value:0 - XXX.X % of par. 105 160 %

Function:In this parameter, the maximum output current ILIM isset. The factory-set value corresponds to the maxi-mum output current IMAX . If the current limit is to beused as motor protection, set the rated motor current.If the current limit is set above 100% (the rated outputcurrent of the frequency converter, IINV.), the frequencyconverter can only handle a load intermittently, i.e. forshort periods at a time. After the load has been higherthan IINV., it must be ensured that for a period the loadis lower than IINV. Please note that if the current limit isset at a lower value than IINV., the acceleration torquewill be reduced to the same extent.

Description of choice:Set the required maximum output current ILIM.

223 Warning: Low current, ILOW

(warn. current lo)

Value:0.0 - par. 224 Warning: High current,IHIGH 0.0 A

Function:If the output current falls below the preset limit ILOW awarning is given.Parameters 223-228 Warning functions are out of func-tion during ramp-up after a start command and after astop command or during stop.The warning functionsare activated when the output frequency has reachedthe resulting reference. The signal outputs can be pro-grammed to give a warning signal via terminal 46 andvia the relay output.

Description of choice:The lower signal limit of the output current ILOW mustbe programmed within the normal working range of thefrequency converter.

224 Warning: High current, IHIGH

(warn. current hi)

Value:0 - IMAX IMAX

Function:If the output current exceeds the preset limit IHIGH awarning is given.Parameters 223-228 Warning functions do not workduring ramp-up after a start command and after stop

VLT® 2800 Series



command or during stop. The warning functions areactivated when the output frequency has reached theresulting reference. The signal outputs can be pro-grammed to give a warning signal via terminal 46 andvia the relay output.

Description of choice:The output current's upper signal limit IHIGH must beprogrammed within the frequency converter's normaloperating range. See drawing at parameter 223 Warn-ing: Low current, ILOW .

225 Warning: Low frequency, fLOW

(warn.freq. low)

Value:0.0 - par. 226Warn.: High frequency, fHIGH 0.0 Hz

Function:If the output frequency falls below the preset limitfLOW, a warning is given.Parameters 223-228 Warning functions are out offunction during ramp-up after a start command and af-ter stop command or during stop. The warning func-tions are activated when the output frequency hasreached the resulting reference. The signal outputscan be programmed to give a warning signal via ter-minal 46 and via the relay output.

Description of choice:The lower signal limit of the output frequency fLOW mustbe programmed within the normal operating range ofthe frequency converter. See drawing at parameter223 Warning: Low current, ILOW.

226 Warning: High frequency fHIGH

(warn.freq.high)

Value:Par. 200 Frequency range = 0-132 Hz[0]/[1].par. 225 fLOW - 132 Hz 132.0 Hz

Par. 200 Frequency range = 0-1000Hz [2]/[3].par. 225 fLOW - 1000 Hz 132.0 Hz

Function:If the output frequency exceeds the preset limit f HIGH

a warning is given.Parameters 223-228 Warning functions do not workduring ramp-up after a start command and after stopcommand or during stop. The warning functions are

activated when the output frequency has reached theresulting reference. The signal outputs can be pro-grammed to give a warning signal via terminal 46 andvia the relay output.

Description of choice:The output frequency's upper signal limit fHIGH must beprogrammed within the frequency converter's normaloperating range. See drawing at parameter 223 Warn-ing: Low current, ILOW .

227 Warning: Low feedback, FBLOW

(warn.feedb. low)

Value:-100,000.000 - par. 228Warn.:FBHIGH -4000.000

Function:If the feedback signal falls below the preset limitFBLOW, a warning is given.Parameters 223-228 Warning functions are out offunction during ramp-up after a start command and af-ter a stop command or during stop. The warning func-tions are activated when the output frequency hasreached the resulting reference.The signal outputscan be programmed to give a warning signal via ter-minal 46 and via the relay output.The unit for feedbackin Closed loop is programmed in parameter 416 Proc-ess units.

Description of choice:Set the required value within the feedback range (pa-rameter 414 Minimum feedback, FBMIN and 415 Max-imum feedback, FBMAX ).

228 Warning: High feedback, FBHIGH

(warn.feedb high)

Value:Par. 227 Warn.: FB LOW - 100,000.000 4000.000

Function:If the feedback signal gets above the preset limitFBHIGH, a warning is given.Parameters 223-228 Warning functions are out offunction during ramp-up after a start command and af-ter a stop command or during stop. The warning func-tions are activated when the output frequency hasreached the resulting reference. The signal outputscan be programmed to give a warning signal via ter-

VLT® 2800 Series



Pro

gram

min

g

minal 46 and via the relay output. The unit for feedbackin Closed loop is programmed in parameter 416 Proc-ess units.

Description of choice:Set the required value within the feedback range (pa-rameter 414 Minimum feedback, FBMIN and 415 Max-imum feedback, FBMAX ).

229 Frequence bypass, bandwidth

(FREQ BYPASS B.W.)

Value:0 (OFF) - 100 Hz 0 Hz

Function:Some systems call for some output frequencies to beavoided because of mechanical resonance problemsin the system. In parameters 230-231 Frequency by-pass these output frequencies can be programmed. Inthis parameter a bandwidth can be defined on eitherside of these frequencies.

Description of choice:The frequency set in this parameter will be centeredaround parameters 230 Frequency bypass 1 and 231Frequency bypass 2.

230 Frequency bypass 1 (FREQ. BYPASS 1)231 Frequency bypass 2 (FREQ. BYPASS 2)

Value:0 - 1000 Hz 0.0 Hz

Function:Some SYSTEMs call for some output frequencies tobe avoided because of mechanical resonance prob-lems in the SYSTEM.

Description of choice:Enter the frequencies to be avoided. See also param-eter 229 Frequency bypass, bandwidth.

VLT® 2800 Series



Inputs and outputs

Digital inputs Term. no. 181 191 27 29 33

par. no. 302 303 304 305 307Value:No function (NO OPERATION) [0] [0] [0] [0] [0]Reset (RESET) [1] [1] [1] [1] [1]Coasting stop inverse (MOTOR COAST INVERSE) [2] [2] [2] [2] [2]Reset and coasting inverse (RESET AND COAST INV.) [3] [3] [3] [3] [3]

Quick-stop inverse (QUICK-STOP INVERSE) [4] [4] [4] [4] [4]DC braking inverse (DC-BRAKE INVERSE) [5] [5] [5] [5] [5]Stop inverse (STOP INVERSE) [6] [6] [6] [6] [6]Start (START) [7] [7] [7] [7] [7]

Pulse start (LATCHED START) [8] [8] [8] [8] [8]Reversing (REVERSING) [9] [9] [9] [9] [9]

Reversing and start (START REVERSING) [10] [10] [10] [10] [10]Start clockwise (ENABLE FORWARD) [11] [11] [11] [11] [11]Start anti-clockwise (ENABLE REVERSE) [12] [12] [12] [12] [12]Jog (JOGGING) [13] [13] [13]

[13][13]

Freeze reference (FREEZE REFERENCE) [14] [14] [14] [14] [14]Freeze output frequency (FREEZE OUTPUT) [15] [15] [15] [15] [15]Speed up (SPEED UP) [16] [16] [16] [16] [16]Speed down (SPEED DOWN) [17] [17] [17] [17] [17]Catch-up (CATCH-UP) [19] [19] [19] [19] [19]Slow-down (SLOW-DOWN) [20] [20] [20] [20] [20]Ramp 2 (RAMP 2) [21] [21] [21] [21] [21]Preset ref, LSB (PRESET REF, LSB) [22] [22] [22] [22] [22]Preset ref, MSB (PRESET REF, MSB) [23] [23] [23] [23] [23]Preset reference on (PRESET REFERENCE ON) [24] [24] [24] [24] [24]Thermistor (THERMISTOR) [25] [25] [25] [25] Precise stop, inverse (PRECISE STOP INV.) [26] [26] Precise start/stop (PRECISE START/STOP) [27] [27] Pulse reference (PULSE REFERENCE) [28]Pulse feedback (PULSE FEEDBACK) [29]Pulse input (PULSE INPUT) [30]Selection of Setup, lsb (SETUP SELECT LSB) [31] [31] [31] [31] [31]Selection of Setup, msb (SETUP SELECT MSB) [32] [32] [32] [32] [32]Reset and start (RESET AND START) [33] [33] [33] [33] [33]Pulse counter start (PULSE COUNTER START) [34] [34]

1. All functions on terminal 18 and 19 are controlled byan interrupter, which means that the repetitive accu-racy of the response time is constant. Can be used forstart/stop, setup switch and especially for changingdigital preset, i.e. to obtain a reproducable stop pointwhen using creep speed. For further information seeVLT 2800 Precise Stop Instruction, MI.28.CX.02.

Function:In these parameters 302-307 Digital inputs it is possi-ble to choose between the different enabled functionsrelated to the digital inputs (terminals 18-33).

Description of choice:No operation is selected if the frequency converter isnot to react to signals transmitted to the terminal.

Reset resets the frequency converter after an alarm;however, a few alarms cannot be reset (trip locked)without first disconnecting the mains supply and re-connecting it. See table under List of warnings andalarms. Reset is activated on the leading edge of thesignal.

Coasting stop inverse is used for making the frequencyconverter "let go" of the motor immediately (output

VLT® 2800 Series



Pro

gram

min

g

transistors are "turned off"), which means that the mo-tor runs freely to stop. Logic '0' leads to coasting tostop.

Reset and coasting inverse are used to activate motorcoast simultaneously with reset. Logical '0' means mo-tor coast stop and reset. Reset is activated on thefalling edge.

Quick stop inverse is used for activating the quick-stopramp down set in parameter 212 Quick stop ramp-down time. Logic '0' leads to quick stop.

DC-braking inverse is used for stopping the motor byenergizing it with a DC voltage for a given time, seeparameters 126, 127 and 132 DC brake. Please notethat this function is only active if the value in parameter126 DC braking time and 132 DC brake voltage is dif-ferent from 0. Logic '0' leads to DC braking.

Stop inverse, a logic '0' means that the motor speed isramped down to stop via the selected ramp.

None of the stop commands mentionedabove are to be used as repair switches.Note that the frequency converter hasmore voltage inputs than L1, L2 and L3when the DC bus terminals are used.Check that all voltage inputs are discon-nected and that the prescribed time (4mins.) has passed before repair work iscommenced.

Start is selected if a start/stop command is required.Logic '1' = start, logic '0' = stop.

Latched start, if a pulse is applied for min. 14 ms, thefrequency converter will start the motor, provided nostop command has been given. The motor can bestopped by briefly activating Stop inverse.

Reversing is used for changing the direction of rotationof the motor shaft. Logic '0' will not lead to reversing.Logic '1' will lead to reversing. The reverse signal onlychanges the direction of rotation, it does not activatethe start. Is not active at Process regulation, closedloop . See also parameter 200 Output frequency range/direction.

Reversing and start is used for start/stop and for re-versing with the same signal. No active start commandis allowed at the same time. Acts as latch start revers-ing, provided latch start has been chosen for terminal18. Is not active for Process regulation, closed loop.See also parameter 200 Output frequency range/di-rection.

Start clockwise is used if you want the motor shaft onlyto be able to rotate clockwise when started. Should notbe used for Process regulation, closed loop.

Start anticlockwise is used if you want the motor shaftonly to be able to rotate anticlockwise when started.Should not be used for Process regulation, closedloop. See also parameter 200 Output frequency range/direction.

Jog is used to override the output frequency to the jogfrequency set in parameter 213 Jog frequency. Jog isactive regardless of whether a start command hasbeen given, yet not when Coast stop, Quick-stop orDC braking are active.

Freeze reference freezes the present reference. Thereference can now only be changed via Speed up andSpeed down. If freeze reference is active, it will besaved after a stop command and in the event of mainsfailure.

Freeze output freezes the present output frequency (inHz). The output frequency can now only be changedvia Speed up and Speed down .

NB!If Freeze output is active the frequencyconverter can only be stopped if you se-lect Motor coast, Quick stop or DC brak-ing via a digital input.

Speed up and Speed down are selected if digital con-trol of the up/down speed is required. This function isonly active if Freeze reference or Freeze output frequen-cy has been selected.If Speed up is active the reference or output frequencywill be increased, and if Speed down is active the ref-erence or output frequency will be reduced. The outputfrequency is changed via the preset ramp times in pa-rameters 209-210 Ramp 2.One pulse (logic '1' minimum high for 14 ms and aminimum break time of 14 ms) will lead to a speedchange of 0.1 % (reference) or 0.1 Hz (output frequen-cy). Example:

VLT® 2800 Series



Term.29

Term.33

Freeze ref/freeze outp.

Function

0 0 1 No speed change0 1 1 Speed up1 0 1 Speed down1 1 1 Speed down

Freeze reference can be changed even if the frequencyconverter has stopped. The reference will also besaved if the mains are disconnected.

Catch-up/Slow-down is selected if the reference valueis to be increased or reduced by a programmable per-centage value set in parameter 219 Catch-up/Slow-down reference .

Slow-down Catch-up Function0 0 Unchanged speed0 1 Increase by % value1 0 Reduce by % value1 1 Reduce by % value

Ramp 2 is selected if a shift between ramp 1 (param-eters 207-208) and ramp 2 (parameters 209-210) isrequired. Logic '0' leads to ramp 1 and logic '1' leadsto ramp 2.

Preset reference, lsb and Preset reference, msb makesit possible to select one of the four preset references,see the table below:

Preset ref.msb

Preset ref.lsb

Function

0 0 Preset ref. 10 1 Preset ref. 21 0 Preset ref. 31 1 Preset ref. 4

Preset reference on is used for shifting between re-mote-controlled reference and preset reference. It isassumed that External/preset [2] has been selected inparameter 214 Reference function. Logic '0' = remote-controlled references are active, logic '1' = one of thefour preset references is active, as can be seen fromthe table above.

Thermistor is to be selected if a possibly integratedthermistor in the motor is to be able to stop the fre-quency converter if the motor overheats. The cut-outvalue is 3 kΩ.

If a motor features a Klixon thermal switch instead, thiscan also be connected to the input. If motors operatein parallel, the thermistors/thermal switches can beconnected in series (total resistance lower than 3 kΩ).Parameter 128 Motor thermal protection must be pro-grammed for Thermistor warning [1] or Thermistor trip[2] and the thermistor is to be connected between adigital input and terminal 50 (+ 10 V supply).

Precise stop, inverse is selected to obtain a high degreeof accuracy when a stop command is repeated. A logic0 means that the motor speed is ramped down to stopvia the selected ramp.

Precise start/stop is selected to obtain a high degreeof accuracy when a start and stop command is repea-ted.

Pulse reference is selected if the reference signal ap-plied is a pulse train (frequency). 0 Hz corresponds toparameter 204 Minimum reference, RefMIN . The fre-quency set in parameter 327 Pulse reference/feedbackcorresponds to parameter 205 Maximum referenceRefMAX .

Pulse feedback is selected if the feedback signal usedis a pulse train (frequency). In parameter 327 Pulsereference/feedback the maximum pulse feedback fre-quency is set.

Pulse input is selected if a specific number of pulsesmust lead to a Precise stop, see parameter 343 Precisestop and parameter 344 Counter value.

Selection of Setup, lsb and Selection of Setup, msbgives the possibility to select one of the four setups. Itis, however, a condition that parameter 004 is set toMultisetup.

Reset and start can be used as a start function. If 24 Vare connected to the digital input, this will cause the

VLT® 2800 Series



Pro

gram

min

g

frequency converter to reset and the motor will rampup to the preset reference.

Pulse counter start is used to start a counter stop se-quence with a pulse signal. The pulse width must atleast be 14 ms and not longer than the count period.See also parameter 343 and the instruction,MI28CXYY.

308 Terminal 53, analogue input voltage

(AI [V]53FUNCT.)

Value:

No function (NO OPERATION) [0]

Reference (reference) [1]

Feedback (feedback) [2]

Wobble (WOBB.DELTA FREQ [%]) [10]

Function:In this parameter it is possible to select the functionrequired to be connected to terminal 53. Scaling of theinput signal is made in parameter 309 Terminal 53, min.scaling and parameter 310 Terminal 53, max. scaling.

Description of choice:No function [0]. Is selected if the frequency converteris not to react to signals connected to the terminal.Reference [1]. If this function is selected, the referencecan be changed by means of an analogue referencesignal. If reference signals are connected to more thanone input, these reference signals must be added up.Ifa voltage feedback signal is connected, select Feed-back [2] on terminal 53.Wobble [10]The delta frequency can be controlled by the analoginput. If WOBB.DELTA FREQ is selected as analog in-put (par. 308 or par. 314) the value selected in par. 702equals 100 % analog input.Example: Analog input = 4-20 mA, Delta freq. par. 702= 5 Hz • 4 mA = 0 Hz and 20 mA = 5 Hz. If this functionis chosen, see Wobble Instruction MI28JXYY for fur-ther information.

309 Terminal 53 Min. scaling

(AI 53 SCALE LOW)

Value:0.0 - 10.0 Volt 0.0 Volt

Function:This parameter is used for setting the signal value thatis to correspond to the minimum reference or the min-imum feedback, parameter 204 Minimum reference,RefMIN / 414 Minimum feedback, FBMIN.

Description of choice:Set the required voltage value. For reasons of accu-racy, compensation should be made for voltage lossin long signal cables. If the Time out function is to beused (parameter 317 Time out and 318 Function aftertime out), the value set must be higher than 1 Volt.

310 Terminal 53 Max. scaling

(AI 53 SCALE HIGH)

Value:0 - 10.0 Volt 10.0 Volt

Function:This parameter is used for setting the signal value thatis to correspond to the maximum reference value ormaximum feedback, parameter 205 Maximum refer-ence, RefMAX / 414 Maximum feedback, FBMAX .

Description of choice:Set the required voltage value. For reasons of accu-racy, compensation should be made for voltage lossesin long signal cables.

314 Terminal 60, analogue input current

(AI [mA] 60 FUNCT)

Value:

No function (no operation) [0]

Reference (reference) [1]

Feedback (feedback) [2]

Wobble (WOBB.DELTA FREQ [%]) [10]

Function:This parameter allows a choice between the differentfunctions available for the input, terminal 60. Scalingof the input signal is effected in parameter 315 Terminal60, min. scaling and parameter 316 Terminal 60, max.scaling.

Description of choice:No function [0]. Is selected if the frequency converteris not to react to signals connected to the terminal.Reference [1]. If this function is selected, the referencecan be changed by means of an analogue reference

VLT® 2800 Series



signal. If reference signals are connected to more thanone input, these reference signals must be added up.If one current feedback signal is connected, selectFeedback [2] on terminal 60.Wobble [10]The delta frequency can be controlled by the analoginput. If WOBB.DELTA FREQ is selected as analog in-put (par. 308 or par. 314) the value selected in par. 702equals 100 % analog input.Example: Analog input = 4-20 mA, Delta freq. par. 702= 5 Hz • 4 mA = 0 Hz and 20 mA = 5 Hz. If this functionis chosen, see Wobble Instruction MI28JXYY for fur-ther information.

315 Terminal 60 Min. scaling

(AI 60 SCALE LOW)

Value:0.0 - 20.0 mA 4.0 mA

Function:In this parameter you can set the signal value that willcorrespond to the minimum reference or minimumfeedback, parameter 204 Minimum reference,RefMIN / 414 Minimum feedback, FBMIN .

Description of choice:Set the required current value. If the Time out functionis to be used (parameter 317 Time out and 318 Func-tion after time out ) the value set must be higher than2 mA.

316 Terminal 60 Max. scaling

(AI 60 SCALE HIGH)

Value:0.0 - 20.0 mA 20.0 mA

Function:This parameter is used for setting the signal value thatis to correspond to the maximum reference value, pa-rameter 205 Maximum reference value, RefMAX .

Description of choice:Set the required current value.

317 Time out

(LIVE ZERO TIME O)

Value:1 - 99 sec. 10 sec.

Function:If the signal value of the reference or feedback signalconnected to one of the input terminals 53 or 60 fallsbelow 50 % of the minimum scaling for a period longerthan the time set, the function selected in parameter318 Function after time out will be activated. This func-tion is only active if in parameter 309 Terminal 53, min.scaling a value higher than 1 Volt has been selected,or if in parameter 315 Terminal 60, min. scaling a valuehigher than 2 mA has been selected.


318 Function after time out

(LIVE ZERO FUNCT.)

Value:

No operation (NO OPERATION) [0]

Freeze output frequency(FREEZE OUTPUT FREQ.) [1]

Stop (stop) [2]

Jog (jog) [3]

Max. speed (MAX SPEED) [4]

Stop and trip (STOP AND TRIP) [5]

Function:This parameter allows a choice of the function to beactivated after the expiry of the Time out (parameter317 Time out ). If a time-out function occurs at the sametime as a bus time-out function (parameter 513 Bustime interval function ), the time-out function in param-eter 318 will be activated.

Description of choice:The output frequency of the frequency converter canbe:

- frozen at the present frequency [1]

- overruled to stop [2]

- overruled to jog frequency [3]

- overruled to max. output frequency [4]

- overruled to stop with subsequent trip [5]

VLT® 2800 Series



Pro

gram

min

g

319 Analogue output terminal 42

(AO 42 FUNCTION)

Value:

No function (NO OPERATION) [0]

External reference min.-max. 0-20 mA(ref min-max = 0-20 mA) [1]

External reference min.-max. 4-20 mA(ref min-max = 4-20 mA) [2]

Feedback min.-max. 0-20 mA(fb min-max = 0-20 mA) [3]

Feedback min.-max. 4-20 mA(fb min-max = 4-20 mA) [4]

Output frequency 0-max 0-20 mA(0-fmax = 0-20 mA) [5]

Output frequency 0-max 4-20 mA(0-fmax = 4-20 mA) [6]

Output current 0-IINV 0-20 mA(0-iinv = 0-20 mA) [7]

Output current 0-IIINV 4-20 mA(0-iinv = 4-20 mA) [8]

Output power 0-PM,N 0-20 mA(0-Pnom = 0-20 mA) [9]

Output power 0-PM,N 4-20 mA(0-Pnom = 4-20 mA) [10]

Inverter temperature 20-100 °C 0-20 mA(TEMP 20-100 C=0-20 mA) [11]

Inverter temperature 20-100 °C 4-20 mA(TEMP 20-100 C=4-20 mA) [12]

Function:The analogue output can be used for stating a processvalue. It is possible to choose two types of output sig-nals 0 - 20 mA or 4 - 20 mA.If used as a voltage output (0 - 10 V), a pull-down re-sistor of 500 Ω must be fitted to common (terminal 55).If the output is used as a current output the resultingresistance from the equipment connected may not ex-ceed 500 Ω.

Description of choice:No function. Is selected if the analogue output is not tobe used.

External RefMIN - RefMAX 0-20 mA/4-20 mA.An output signal is obtained, which is proportional tothe resulting reference value in the interval Minimumreference, RefMIN - Maximum reference, RefMAX (pa-rameters 204/205).

FBMIN-FBMAX 0-20 mA/ 4-20 mA.

An output signal is obtained, which is proportional tothe feedback value in the interval Minimum feedback,FBMIN - Maximum feedback, FBMAX (parameter414/415).

0-fMAX 0-20 mA/4-20 mA.An output signal is obtained, which is proportional tothe output frequency in the interval 0 - fMAX (parameter202 Output frequency, high limit, fMAX ).

0 - IINV 0-20 mA/4-20 mA.An output signal is obtained, which is proportional tothe output current in the interval 0 - IINV

0 - PM,N 0-20 mA/4-20 mA.An output signal is obtained, which is proportional tothe present output power. 20 mA corresponds to thevalue set in parameter 102 Motor power, PM,N.

0 - Temp.MAX 0-20 mA/4-20 mA.An output signal is obtained, which is proportional tothe present heatsink temperature. 0/4 mA corre-sponds to a heatsink temperature of less than 20 °C,and 20 mA corresponds to 100 °C.

323 Relay output 1-3

(RELAY 1-3 FUNCT.)

Value:

No function (no operation) [0]

Unit ready (unit ready) [1]

Enable/no warning (enable/no warning) [2]

Running (RUNNING) [3]

Running in reference, no warning(run on ref/no warn) [4]

Running, no warnings(RUNNING/NO WARNING) [5]

Running in reference range, no warnings(RUN IN RANGE/ NO WARN) [6]

Ready - mains voltage within range(RDY NO OVER/UNDERVOL) [7]

Alarm or warning(ALARM OR WARNING) [8]

Current higher than current limit, par. 221(Current limit) [9]

Alarm (ALARM) [10]

Output frequency higher than fLOW par. 225(above frequency low) [11]

Output frequency lower than fHIGH par. 226(below frequency high) [12]

Output current higher than ILOW par. 223(above current low) [13]

VLT® 2800 Series



Output current lower than IHIGH par. 224(below current high) [14]

Feedback higher than FBLOW par. 227(above feedback low) [15]

Feedback lower than FBHIGH par. 228(under feedback high) [16]

Relay 123 (RELAY 123) [17]

Reversing (REVERSE) [18]

Thermal warning (THERMAL WARNING) [19]

Local operation (LOCAL MODE) [20]

Out of frequency range par. 225/226(out of freq range) [22]

Out of current range(out of current range) [23]

Out of feedback range(out of fdbk. range) [24]

Mechanical brake control(Mech. brake control) [25]

Control word bit 11(control word bit 11) [26]

Function:The relay output can be used for giving the presentstatus or warning. The output is activated (1-2 make)when a given condition is fulfilled.

Description of choice:No function. Is selected if the frequency converter isnot to react to signals.

Unit ready, there is a supply voltage on the control cardof the frequency converter, and the frequency con-verter is ready for operation.

Enable, no warning, the frequency converter is readyfor operation, but no start command has been given.No warning.

Running is active when there is a start command or theoutput frequency is above 0.1 Hz. Also active duringramp-down.

Running in reference, no warning speed according toreference.

Running, no warning, a start command has been given.No warning.

Ready - mains voltage within range, the frequency con-verter is ready for use; the control card is receiving asupply voltage; and there are no active control signalson the inputs. The mains voltage lies within the voltagelimits.

Alarm or warning, the output is activated by an alarmor warning.

Current limit, the output current is higher than the valueprogrammed in parameter 221 Current limit I LIM.

Alarm, The output is activated by an alarm.

Output frequency higher than fLOW , the output frequen-cy is higher than the value set in parameter 225Warning: Low frequency, fLOW .

Output frequency lower than fHIGH, the output frequen-cy is lower than the value set in parameter 226 Warn-ing: High frequency, fHIGH .

Output current higher than ILOW , the output current ishigher than the value set in parameter 223 Warning:Low current, ILOW .

Output current lower than IHIGH , the output current islower than the value set in parameter 224 Warning:High current, IHIGH .

Feedback higher than FBLOW , the feedback value ishigher than the value set in parameter 227 Warning:Low feedback, FBLOW .

Feedback lower than FBHIGH , the feedback value islower than the value set in parameter 228 Warning:High current, IHIGH .

Relay 123 is only used in connection with Profidrive.

Reversing, The relay output is activated when the di-rection of motor rotation is anti-clockwise. When thedirection of motor rotation is clockwise, the value is 0V DC.

Thermal warning, above the temperature limit in eitherthe motor or the frequency converter, or from a ther-mistor connected to a digital input.

Local operation, the output is active when in parameter002 Local/remote operation, Local operation [1] hasbeen selected.

Out of the frequency range, the output frequency is outof the programmed frequency range in parameters225 and 226.

Out of the current range, the motor current is out of theprogrammed range in parameters 223 and 224.

Out of the feedback range, the feedback signal is outof the programmed range in parameters 227 and 228.

Mechanical brake control, enables you to control anexternal mechanical brake (see section about controlof mechanical brake in the VLT 2800 Design Guide).

VLT® 2800 Series



Pro

gram

min

g

327 Pulse reference/feedback

(PULSE REF/FB MAX)

Value:150 - 67600 Hz 5000 Hz

Function:This parameter is used for setting the signal value thatcorresponds to the maximum value set in parameter205 Maximum reference, RefMAX or to the maximumfeedback value set in parameter 415 Maximum feed-back, FBMAX .

Description of choice:Set the required pulse reference or pulse feedback tobe connected to terminal 33.

328 Maximum Pulse 29

(MAX PULSE 29)

Value:150 - 67600 Hz 5000 Hz

Function:This parameter is used for setting the signal value thatcorresponds to the maximum value set in parameter205 Maximum reference, RefMAX or to the maximumfeedback value set in parameter 415 Maximum feed-back, FBMAX .

NB!Only relevant for DeviceNet. SeeMG90BXYY for further information.

341 Digital / pulse output terminal 46

(DO 46 FUNCTION)

Value:

Unit ready (UNIT READY) [0]

Parameter [0] - [20] see parameter 323

Pulse reference (PULSE REFERENCE) [21]

Parameter [22] - [25] see parameter 323

Pulse feedback (PULSE FEEDBACK) [26]

Output frequency (PULSE OUTPUTFREQ) [27]

Pulse current (PULSE CURRENT) [28]

Pulse power (PULSE POWER) [29]

Pulse temperature (PULSE TEMP) [30]

Function:The digital output can be used for giving the presentstatus or warning. The digital output (terminal 46) givesa 24 V DC signal when a given condition is fulfilled.Terminal can also be used for frequency output.Parameter 342 sets the maximum pulse frequency.

Description of choice:Pulse reference RefMIN - Ref MAX

An output signal is obtained, which is proportional tothe resulting reference value in the interval Minimumreference, Ref MIN - Maximum reference, RefMAX (pa-rameters 204/205).

Pulse feedback FBMIN-FBMAX .An output signal is obtained, which is proportional tothe feedback value in the interval Minimum feedback,FBMIN - Maximum feedback, FBMAX (parameter414/415).

Output frequency 0-fMAX.An output signal is obtained, which is proportional tothe output frequency in the interval 0 - fMAX (parameter202 Output frequency, high limit, fMAX ).

Pulse current 0 - IINV..An output signal is obtained, which is proportional tothe output current in the interval 0 - IINV.

Pulse power 0 - PM,N.An output signal is obtained, which is proportional tothe present output power. Par. 342 corresponds to thevalue set in parameter 102 Motor power, PM,N.

Pulse temperature 0 - Temp.MAX.An output signal is obtained, which is proportional tothe present heatsink temperature. 0 Hz correspondsto a heatsink temperature of less than 20° C, and pa-rameter 342 corresponds to 100° C.

NB!Output terminal 46 is not available on De-viceNet. Minimum output frequency at fre-quency output = 16 Hz

342 Terminal 46, max. pulse scaling

(DO 46 MAX. PULS)

Value:150 - 10000 Hz 5000 Hz

Function:This parameter is used for setting the pulse output sig-nal's maximum frequency.

VLT® 2800 Series




343 Precise stop function

(Precise stop)

Value:

Precise ramp stop (normal) [0]

Counter stop with reset(Count stop reset) [1]

Counter stop without reset(Count stop no reset) [2]

Speed-compensated stop (Spd cmp stop) [3]

Speed-compensated counter stop with reset(Spd cmp cstop w. res) [4]

Speed-compensated counter stop without re-set(Spd cmp cstop no res) [5]

Function:In this parameter you select which stop function is per-formed in response to a stop command. All six dataselections contain a precise stop routine, thus ensur-ing a high level of repeat accuracy.The selections are a combination of the functions de-scribed below.

NB!Pulse start [8] may not be used togetherwith the precise stop function.

Description of choice:Precise ramp stop [0] is selected to achieve high re-petitive precision at the stopping point.Counter stop. Once it has received a pulse start signalthe frequency converter runs until the number of pul-ses programmed by the user have been received atinput terminal 33. In this way an internal stop signal willactivate the normal ramp down time (parameter 208).The counter function is activated (starts timing) at theflank of the start signal (when it changes from stop tostart).Speed compensated stop. To stop at precisely thesame point, regardless of the present speed, a stopsignal received is delayed internally when the presentspeed is lower than the maximum speed (set in pa-rameter 202).Reset. Counter stop and Speed-compensated stop canbe combined with or without reset.

Counter stop with reset [1]. After each precise stop thenumber of pulses counted during ramp down 0 Hz isreset.Counter stop without reset [2]. The number of pulsescounted during ramp down to 0 Hz is deducted fromthe counter value in parameter 344.

344 Counter value

(Pulse count pre.)

Value:0 - 999999 100000 pulses

Function:In this parameter you can select the counter value tobe used in the integrated precise stop function (pa-rameter 343).

Description of choice:The factory setting is 100000 pulses. The highest fre-quency (max. resolution) that can be registered atterminal 33 is 67.6 kHz.

349 Speed comp delay

(SPEED COMP DELAY)

Value:0 ms - 100 ms 10 ms

Function:In this parameter the user can set the SYSTEM's delaytime (Sensor, PLC, etc.). If you are running speed-compensated stop, the delay time at different frequen-cies has a major influence on the way in which youstop.

Description of choice:The factory setting is 10 ms. This means that it is as-sumed that the total delay from the Sensor, PLC andother hardware corresponds to this setting.

NB!Only active for speed-compensated stop.

VLT® 2800 Series



Pro

gram

min

g

Special functions

400 Brake function

(Brake function)

Value:

Off (off) [0]

Resistor brake(Resistor) [1]

AC brake (AC Brake) [4]

Load sharing (load sharing) [5]

Factory setting depends on unit type.

Function:Resistor brake [1] is selected if the frequency converterhas an integral brake transistor and brake resistor isconnected to terminals 81, 82. A higher intermediatecircuit voltage is permitted during braking (generatedoperation) when a brake resistor is connected.AC brake [4] can be selected to improve braking with-out using brake resistors. Please note that AC brake[4] is not as effective as Resistor brake [1].

Description of choice:Select Resistor brake [1] if a brake resistor is connec-ted.Select AC brake [4] if short-term generated loads oc-cur. See parameter 144 Gain AC brake to set the brake.

Select Load sharing [5] if this is used.

NB!A change of selection will not become ac-tive until the mains voltage has been dis-connected and reconnected.

405 Reset function

(reset mode)

Value:

Manual reset (manual reset) [0]

Automatic reset x 1(AUTOMATIC x 1) [1]



Reset at power-up(RESET AT POWER UP) [11]

Function:This parameter makes it possible to select whether re-set and restart after a trip are to be manual or whetherthe frequency converter is to be reset and restartedautomatically. Furthermore, it is possible to select thenumber of times a restart is to be attempted. The timebetween each attempt is set in parameter 406 Auto-matic restart time.

Description of choice:If Manual reset [0] is selected, reset is to be carried outvia the [STOP/RESET] key, a digital input or serialcommunication. If the frequency converter is to carryout an automatic reset and restart after a trip, selectdata value [1], [3] or [10].If Reset at power-up [11] is selected, the frequencyconverter will carry out a reset if there has been a faultin connection with the mains failure.

The motor may start without warning.

406 Automatic restart time

(autorestart time)

Value:0 - 10 sec. 5 sec.

Function:This parameter allows setting of the time from trippinguntil the automatic reset function begins. It is assumedthat automatic reset has been selected in parameter405 Reset function.


409 Trip delay overcurrent, ILIM

(trip delay cur.)

Value:0 - 60 sec. (61=OFF) OFF

Function:When the frequency converter registers that the outputcurrent has reached the current limit ILIM (parameter221 Current limit) and remains there for the presettime, it is disconnected. Can be used to protect theapplication, like the ETR will protect the motor if se-lected.

VLT® 2800 Series



Description of choice:Select how long the frequency converter should main-tain the output current at the current limit ILIM before itdisconnects. At OFF parameter 409 Trip delay over-current, ILIM is not working, i.e. disconnection will nottake place.

411 Switching frequency

(Switch freq.)

Value:3000 - 14000 Hz (VLT 2803 - 2875) 4500 Hz

3000 - 10000 Hz (VLT 2880 - 2882) 4500 Hz

Function:The set value determines the switching frequency ofthe inverter. If the switching frequency is changed, thismay help to minimise possible acoustic noise from themotor.

NB!The output frequency of the frequencyconverter can never assume a value high-er than 1/10 of the switching frequency.

Description of choice:When the motor is running, the switching frequency isadjusted in parameter 411 Switching frequency untilthe frequency has been obtained at which the motor isas low-noise as possible.

NB!The switching frequency is reduced auto-matically as a function of the load. SeeTemperature-Dependent Switching Fre-quency under Special Conditions .When LC-filter connected is selected inparameter 412, the minimum switchingfrequency is 4.5 kHz.

412 Variable switching frequency

(Var carrier freq.)

Value:

Without LC-filter (WITHOUT LC-FILTER) [2]

LC-filter connected(LC-filter connected) [3]

Function:The parameter must be set to LC-filter connected if anLC-filter is connected between the frequency convert-er and the motor.

Description of choice:The LC-filter connected [3] must be used if an LC-filteris connected between the frequency converter and themotor, as otherwise the frequency converter cannotprotect the LC-filter.

NB!When the LC filter is selected the switch-ing frequency is changed to 4.5 kHz.

413 Overmodulation function

(OVERMODULATION)

Value:

Off (off) [0]

On (on) [1]

Function:This parameter allows connection of the overmodula-tion function for the output voltage.

Description of choice:Off [0] means that there is no overmodulation of theoutput voltage, which means that torque ripple on themotor shaft is avoided. This can be a good feature, e.g.on grinding machines. On [1] means that an outputvoltage can be obtained which is greater than themains voltage (up to 5 %).

414 Minimum feedback, FB MIN

(Min. feedback)

Value:-100,000.000 - par. 415 FBMAX 0.000

Function:Parameter 414 Minimum feedback, FBMIN and 415Maximum feedback, FB MAX are used to scale the dis-play text to make it show the feedback signal in aprocess unit proportionally to the signal on the input.

Description of choice:Set the value to be shown on the display as the mini-mum feedback signal value on the selected feedbackinput (parameters 308/314 Analogue inputs).

VLT® 2800 Series



Pro

gram

min

g

415 Maximum feedback, FBMAX

(Max. feedback)

Value:FBMIN - 100,000.000 1500.000

Function:See description of parameter 414 Minimum feedback,FBMIN .

Description of choice:Set the value to be shown on the display when themaximum feedback has been obtained on the selectedfeedback input (parameter 308/314 Analogue inputs).

416 Process units

(REF/FEEDB. UNIT)

Value:

No unit (No unit) [0]

% (%) [1]

ppm (ppm) [2]

rpm (rpm) [3]

bar (bar) [4]

Cycles/min (CYCLE/MI) [5]

Pulses/s (PULSE/S) [6]

Units/s (UNITS/S) [7]

Units/min. (UNITS/MI) [8]

Units/h (Units/h) [9]

°C (°C) [10]

Pa (pa) [11]

l/s (l/s) [12]

m3/s (m3/s) [13]

l/min. (l/m) [14]

m3/min. (m3/min) [15]

l/h (l/h) [16]

m3/h (m3/h) [17]

Kg/s (kg/s) [18]

Kg/min. (kg/min) [19]

Kg/hour (kg/h) [20]

Tons/min. (T/min) [21]

Tons/hour (T/h) [22]

Metres (m) [23]

Nm (nm) [24]

m/s (m/s) [25]

m/min. (m/min) [26]

°F (°F) [27]

In wg (in wg) [28]

gal/s (gal/s) [29]

Ft3/s (ft3/s) [30]

Gal/min. (gal/min) [31]

Ft3/min. (Ft3/min) [32]

Gal/h (gal/h) [33]

Ft3/h (Ft3/h) [34]

Lb/s (lb/s) [35]

Lb/min. (lb/min) [36]

Lb/hour (lb/h) [37]

Lb ft (lb ft) [38]

Ft/s (ft/s) [39]

Ft/min. (ft/min) [40]

Psi (Psi) [41]

Function:Select among different units to be shown on the dis-play. The unit is read out if an LCP control unit can beconnected, and if Reference [unit] [2] or Feedback[unit] [3] has been selected in one of parameters009-012 Display read-out, and in Display mode. Theunit is used in Closed loop also as a unit for Minimum/Maximum reference and Minimum/Maximum feed-back.

Description of choice:Select the required unit for the reference/feedback sig-nal.

NB!Parameters 417-421 are only used, if inparameter 100 Configuration the selectionmade is Speed regulation, closed loop [1].

417 Speed PID proportional gain

(SPEED PROP GAIN)

Value:0.000 (OFF) - 1.000 0.010

Function:Proportional gain indicates how many times the fault(deviation between the feedback signal and the set-point) is to be amplified.

Description of choice:Quick regulation is obtained at high amplification, butif the amplification is too high, the process may be-come unstable in the case of overshooting.

VLT® 2800 Series



418 Speed PID integral time

(SPEED int. time)

Value:20.00 - 999.99 ms (1000 = OFF) 100 ms

Function:The integral time determines how long the PID regu-lator takes to correct the error. The greater the error,the quicker the integrator frequency contribution willincrease. The integral time is the time the integratorneeds to achieve the same change as the proportionalamplification.

Description of choice:Quick regulation is obtained through a short integraltime. However, if this time is too short, it can make theprocess unstable. If the integral time is long, major de-viations from the required reference may occur, sincethe process regulator will take long to regulate if anerror has occurred.

419 Speed PID differential time

(SPEED diff. time)

Value:0.00 (OFF) - 200.00 ms 20.00 ms

Function:The differentiator does not react to a constant error. Itonly makes a contribution when the error changes.The quicker the error changes, the stronger the gainfrom the differentiator will be. The contribution is pro-portional to the speed at which errors change.

Description of choice:Quick control is obtained by a long differential time.However, if this time is too long, it can make the proc-ess unstable. When the differential time is 0 ms, the D-function is not active.

420 Speed PID D- gain limit

(SPEED D-GAIN LIM)

Value:5.0 - 50.0 5.0

Function:It is possible to set a limit for the gain provided by thedifferentiator. Since the D-gain increases at higher fre-quencies, limiting the gain may be useful. This enablesobtaining a pure D-gain at low frequencies and a con-stant D-gain at higher frequencies.

Description of choice:Select the required gain limit.

421 Speed PID lowpass filter time

(speed filt. time)

Value:20 - 500 ms 100 ms

Function:Noise in the feedback signal is dampened by a firstorder lowpass filter to reduce the noise's impact on theregulation. This might be an advantage, e.g. if there isa great amount of noise on the signal. See drawing.

Description of choice:If a time constant (t) of 100 ms is programmed, the cut-off frequency for the lowpass filter will be 1/0.1 = 10RAD/sec., corresponding to (10 / 2 x π) = 1.6 Hz. ThePID regulator will then only regulate a feedback signalthat varies with a frequency of less than 1.6 Hz. If thefeedback signal varies by a higher frequency than 1.6Hz, it will be dampened by the lowpass filter.

423 U1 voltage

(U1 voltage)

Value:0.0 - 999.0 V par. 103

Function:Parameters 423-428 are used when in parameter 101Torque characteristic a selection has been made of

VLT® 2800 Series



Pro

gram

min

g

Special motor characteristic [8]. It is possible to deter-mine a U/f characteristic on the basis of four definablevoltages and three frequencies. The voltage at 0 Hz isset in parameter 133 Start voltage.

Description of choice:Set the output voltage (U1) that is to match the firstoutput frequency (F1), parameter 424 F1 frequency.

424 F1 frequency

(F1 frequency)

Value:0.0 - par. 426 F2 frequen-cy

Par. 104 Motor fre-quency

Function:See parameter 423 U1 voltage .

Description of choice:Set the output frequency (F1) that is to match the firstoutput voltage (U1), parameter 423 U1 voltage .

425 U2 voltage

(U2 voltage)

Value:0.0 - 999.0 V par. 103

Function:See parameter 423 U1 voltage.

Description of choice:Set the output voltage (U2) that is to match the secondoutput frequency (F2), parameter 426 F2 frequency.

426 F2 frequency

(F2 frequency)

Value:Par. 424 F1 frequency -par. 428 F3 frequency



Description of choice:Set the output frequency (F2) that is to match the sec-ond output voltage (U2), parameter 425 U2 voltage .

427 U3 voltage

(U3 voltage)

Value:0.0 - 999.0 V par. 103


Description of choice:Set the output voltage (U3) that is to match the thirdoutput frequency (F3), parameter 428 F3 frequency .

428 F3 frequency

(F3 frequency)

Value:Par. 426 F2 frequency -1000 Hz



Description of choice:Set the output frequency (F3) that is to match the thirdoutput voltage (U3), parameter 427 U3 voltage .

NB!Parameters 437-444 are only used if inparameter 100 Configuration a selectionhas been made of Process regulation,closed loop. [3].

437 Process PID normal/inverse control

(proc no/inv ctrl)

Value:

Normal (normal) [0]

Inverse (inverse) [1]

Function:It is possible to choose whether the process regulatoris to increase/reduce the output frequency if there is a

VLT® 2800 Series



deviation between the reference/setpoint and the ac-tual process mode.

Description of choice:If the frequency converter is to reduce the output fre-quency in case the feedback signal increases, selectNormal [0].If the frequency converter is to increase theoutput frequency in case the feedback signal increa-ses, select Inverse [1].

438 Proces PID anti windup

(proc anti windup)

Value:


Active (ENABLE) [1]

Function:It is possible to select whether the process regulator isto continue regulating on a deviation even if it is notpossible to increase/reduce the output frequency.

Description of choice:The factory setting is Enable [1], which means that theintegration link is initialised in relation to the actual out-put frequency if either the current limit, the voltage limitor the max./min. frequency has been reached. Theprocess regulator will not engage again until either theerror is zero or its sign has changed. Select Disable [0]if the integrator is to continue integrating on the devi-ation, even if it is not possible to remove the fault bysuch control.

NB!If Disable [0] is selected, it will mean thatwhen the deviation changes its sign, theintegrator will first have to integrate downfrom the level obtained as a result of theformer error, before any change in outputfrequency occurs.

439 Process PID start frequency

(PROC START VALUE)

Value:fMIN - fMAX (parameter201/202)

Par. 201 Output fre-quency, low limit, fMIN

Function:When the start signal comes, the frequency converterwill react in the form of Open loop and will not changeto Closed loop until the programmed start frequency isreached. This makes it possible to set a frequency thatcorresponds to the speed at which the process nor-mally runs, which will enable the required processconditions to be reached sooner.

Description of choice:Set the required start frequency.

NB!If the frequency converter is running a thecurrent limit before the required start fre-quency is obtained, the process regulatorwill not be activated. For the regulator tobe activated anyway, the start frequencymust be lower to the required output fre-quency. This can be done during opera-tion.

440 Proces PID proportioanl gain

(PROC. PROP. GAIN)

Value:0.0 - 10.00 0.01

Function:The proportional gain indicates the number of timesthe deviation between the setpoint and the feedbacksignal is to be applied.

Description of choice:Quick regulation is obtained by a high gain, but if thegain is too high, the process may become unstable dueto overshoot.

441 Process PID integration time

(PROC. INTEGR. T.)

Value:0.01 - 9999.99 (OFF) OFF

VLT® 2800 Series



Pro

gram

min

g

Function:The integrator provides an increasing gain at a con-stant error between the reference/setpoint and thefeedback signal. The greater the error, the quicker theintegrator frequency contribution will increase.The in-tegral time is the time needed by the integrator to makethe same change as the proportional gain.

Description of choice:Quick regulation is obtained at a short integral time.However, this time may become too short, which canmake the process unstable due to overswing. If the in-tegral time is long, major deviations from the requiredsetpoint may occur, since the process regulator willtake a long time to regulate in relation to a given error.

442 Process PID differentiation time

(PROC. DIFF. time)

Value:0.00 (OFF) - 10.00 sec. 0.00 sec.

Function:The differentiator does not react to a constant error. Itonly makes a gain when an error changes. The quickerthe deviation changes, the stronger the gain from thedifferentiator. The gain is proportional to the speed atwhich the deviation changes.

Description of choice:Quick regulation is obtained with a long differentiationtime. However, this time may become too long, whichcan make the process unstable due to overswing.

443 Process PID diff. gain limit

(PROC. DIFF.GAIN)

Value:5.0 - 50.0 5.0

Function:It is possible to set a limit for the differentiator gain. Thedifferentiator gain will increase if there are fastchanges, which is why it can be beneficial to limit thisgain. Thereby a pure differentiator gain is obtained atslow changes and a constant differentiator gain wherequick changes to the deviation occur.

Description of choice:Select a differentiator gain limit as required.

444 Process PID lowpass filter time

(proc filter time)

Value:0.02 - 10.00 0.02

Function:Noise in the feedback signal is dampened by a firstorder lowpass filter to reduce the noise's impact on theprocess regulation. This can be an advantage e.g. ifthere is a lot of noise on the signal.

Description of choice:Select the required time constant (t). If a time constant(t) of 0.1 s is programmed, the cut-off frequency for thelowpass filter will be 1/0.1 = 10 RAD/sec., correspond-ing to (10 / 2 x π) = 1.6 Hz. The process regulator willthus only regulate a feedback signal that varies by afrequency lower than 1.6 Hz. If the feedback signalvaries by a higher frequency than 1.6 Hz, it will bedampened by the lowpass filter.

445 Flying start

(flyingstart)

Value:

Off (DISABLE) [0]

OK - same direction(OK-same direction) [1]

OK - both directions(OK-both directions) [2]

DC brake and start(DC-BRAKE BEF. START) [3]

Function:This function makes it possible to 'catch' a rotatingmotor shaft, which is no longer controlled by the fre-quency converter, e.g. because of a mains drop-out.The function is activated each time a start commandis enabled. For the frequency converter to be able to'catch' the rotating motor shaft, the motor speed mustbe lower than the frequency that corresponds to thefrequency in parameter 202 Output frequency, highlimit, f MAX .

Description of choice:Select Disable [0] if this function is not required.

Select OK - same direction [1] if the motor shaft is onlyable to rotate in the same direction when cutting in. OK- same direction [1] should be selected if in parameter

VLT® 2800 Series



200 Output frequency range a selection has been ofClockwise only .

Select OK - both directions [2] if the motor is able torotate in both directions when cutting in.

Select DC brake and start [3] if the frequency converteris to be able to brake the motor using the DC brakefirst, followed by start. It is assumed that parameters126-127/132 DC brake are enabled. In the case ofhigher 'Windmilling' (rotating motor) effects, the fre-quency converter is not able to 'catch' a rotating motorwithout selecting DC brake and start .

Limitations:

- Too low inertia will lead to load acceleration,which can be dangerous or prevent correctcatching of a rotating motor. Use the DCbrake instead.

- If the load is driven, e.g. by 'Windmilling' (ro-tating motor) effects, the unit may cut outbecause of overvoltage.

- Flying start does not work at lower valuesthan 250 rpm.

451 Speed PID feedforward factor

(feedforward fact)

Value:0 - 500 % 100 %

Function:This parameter is only active if in parameter 100 Con-figuration the selection made is Speed regulation,closed loop. The FF function sends a larger or smallerpart of the reference signal outside the PID controllerin such a way that the PID controller only has an influ-ence on part of the control signal. Any change to theset point will thus have a direct effect on the motorspeed. The FF factor provides high dynamism whenchanging the set point and less overswing.

Description of choice:The required % value can be selected in the interval f

MIN - fMAX. Values over 100 % are used if the set pointvariations are only small.

452 Controller range

(pid contr. range)

Value:0 - 200 % 10 %

Function:This parameter is only active if in parameter 100 Con-figuration the selection made is Speed regulation,closed loop.The controller range (bandwidth) limits the output fromthe PID controller as a % of motor frequency fM,N.

Description of choice:The required % value can be selected for motor fre-quency fM,N. If the controller range is reduced thespeed variations will be less during initial tuning.

455 Frequency range monitor

(MON. FREQ. RANGE)

Value:

Disable [0]

Enable [1]

Function:This parameter is used if warning 33 Out of frequencyrange must be turned off in the display in process con-trol closed loop. This parameter does not affect theextended status word.

Description of choice:Select Enable [1] to enable the readout in the displayif warning 33 Out of frequency range occurs. SelectDisable [0] to disable the readout in the display if warn-ing 33 ut of frequency range occurs.

456 Brake Voltage Reduce

(BRAKE VOL REDUCE)

Value:0 - 25 V if 200V device 0

0 - 50 V if 400V device 0

Function:The user sets the voltage by which the level for resistorbraking is reduced. It is only active when resistor inparameter 400 is selected.

Description of choice:The greater the reduction value, the faster the reactionto a generator overload. Should only be used if there

VLT® 2800 Series



Pro

gram

min

g

are problems with overvoltage in the intermediate cir-cuit.

457 Phase loss function

(PHASE LOSS FUNCT)

Value:

Trip (TRIP) [0]

Autoderate & warning (AUTODERATE &WARNING) [1]

Warning (WARNING) [2]

Function:Select the function which is to be activated if the mainsimbalance becomes too high or if a phase is missing.

Description of choice:At Trip [0] the frequency converter will stop the motorwithin a few seconds (depending on drive size).If Autoderate & warning [1] is selected, the drive willexport a warning and reduce the output current to 50% of IVLT,N to maintain operation.At Warning [2] only a warning will be exported when amains failure occurs, but in severe cases, other ex-treme conditions might result in a trip.

NB!If Warning has been selected, the life ex-pectancy of the drive will be reduced whenthe mains failure persists.

461 Feedback conversion

(FEEDBAC CONV.)

Value:

Linear (LINEAR) [0]

Square root (SQUARE ROOT) [1]

Function:In this parameter, a function is selected which convertsa connected feedback signal from the process to afeedback value that equals the square root of the con-nected signal. This is used, e.g. where regulation of aflow (volume) is required on the basis of pressure as

feedback signal (flow = constant x pressure ). Thisconversion makes it possible to set the reference insuch a way that there is a linear connection betweenthe reference and the flow required.

Description of choice:If Linear [0] is selected, the feedback signal and thefeedback value will be proportional. If Square root [1]is selected, the frequency converter translates thefeedback signal to a squared feedback value.

NB!Parameter groups 500 Serial communica-tion and 600 Service functions are notincluded in this manual. Please contactDanfoss and ask for the VLT 2800 DesignGuide.

VLT® 2800 Series



Enhanced Sleep Mode

The enhanced sleep mode has been developed towork under all conditions and to overcome problemswhen using pumps with flat pump curves or when suc-tion pressure varies. Enhanced sleep mode providesexcellent control for shutting down the pump at lowflow, thus saving energy.

If operating with constant pressure control in the SYS-TEM, for instance a drop in the suction pressure willlead to an increase in frequency to maintain pressure.Consequently there is a situation, where the frequencywill vary independent of the flow. This can lead to in-appropriate activation of sleep mode or wake-up of thefrequency converter.

Flat pump curves leads to a situation where there willbe little or no change in frequency in response to flowvariation. Consequently, the frequency convertermight not reach the sleep frequency when setting it ata low value.

Enhanced sleep mode is based on power/frequencymonitoring and works in closed loop only. Stop due tothe enhanced sleep mode function is initiated underthe following conditions:

• Power consumption is below the no/low flowpower curve and stays there for a certain time(parameter 462 Enhanced sleep mode timer)or

• The pressure feedback is above the refer-ence when running at minimum speed andstays there for a certain time (parameter 462Enhanced sleep mode timer).

If the feedback pressure falls below the wakeup pres-sure (Parameter 464 Wakeup pressure), the frequencyconverter restarts the motor.

Dry Run Detection

For most pumps, especially submersible bore-holepumps, it must be assured that the pump is stopped incase of dry run. This is assured by the Dry run detec-tion feature.

How Does It Work?Dry run detection is based on power/frequency moni-toring and works in both closed and open loop.

Stop (trip) due to dry run is initiated under followingconditions:Closed loop:

• The frequency converter is running at maxi-mum frequency (parameter 202 Output fre-quency high limit, fMAX) and

• Feedback is below minimum reference (pa-rameter 204 Minimum reference, Ref,MIN) and

• Power consumption is below the no/low flowpower curve for a certain time (parameter470 Dry run time out)

Open loop:• Whenever the power consumption is below

the no/low flow power curve for a certain time(parameter 470 Dry run time out) the frequen-cy converter will trip.

The frequency converter can be set up for either man-ual or automatic restart after stop (parameters 405Reset function and 406 Automatic restart time).

• Enhanced Sleep Mode and Dry Run Detec-tion can be enabled and disabled independ-ently. This is done in parameter 462Enhanced sleep mode timer and parameter470 Dry run time out.

Centrifugal pumps with radial impellers show a clearone-to-one relation between power consumption andflow, which is utilized to detect a no or low flow situa-tion.It is only necessary to enter two sets of values for pow-er and frequency (min and max) at no or low flow. Thefrequency converter then automatically calculates alldata in-between those two sets of values and gener-ates the no/low flow power curve.If the power consumption falls below the power curve,the frequency converter enters Sleep-mode or tripsdue to dry run, depending on the configuration.

VLT® 2800 Series


Pro

gram

min

g

• Dry run protection. Shuts down at no or lowflow and protects the motor and pump fromoverheating.

• Improved energy savings with Enhancedsleep mode.

• Minimized risk of bacterial growth in drinkingwater because of insufficient motor cooling.

• Easy commissioning.

Only centrifugal pumps with radial impeller show aclear one to one relationship between flow and power.Consequently proper functionality of the EnhancedSleep Mode and Dry Run Detection is only given forthis type of pump.

462 Enhanced Sleep Mode Timer

(ESL timer)

Value:Value 0 – 9999 sec. 0 = OFF

Function:The timer prevents cycling between Sleep mode andnormal operation. If for instance the power consump-tion falls below the no/low flow power curve the fre-quency converter will change mode when the timerexpires.

Description of choice:In case of cycling, set the timer to an appropriate valuethat limits the number of cycles.The value 0 disables Enhanced sleep mode.Note: In parameter 463 Boost set point it is possible toset up the frequency converter to provide a pressureboost before the pump is stopped.

463 Boost setpoint

(BOOST SETPOINT)

Value:1 - 200 % 100 % of setpoint

Function:This function can only be used if Closed loop has beenselected in parameter 100.In systems with constant pressure regulation, it is ad-vantageous to increase the pressure in the systembefore the frequency converter stops the motor. Thisextends the time during which the frequency converterstops the motor and helps to avoid frequent startingand stopping of the motor, e.g. in the case of leaks inthe water supply system.

There is a fixed boost time-out on 30 sec. in case theboost setpoint cannot be reached.

Description of choice:Set the required Boost setpoint as a percentage of theresulting reference under normal operation. 100% cor-responds to the reference without boost (supplement).

VLT® 2800 Series



464 Wakeup Pressure

(Wakeup Pressure)

Value:Par. 204 RefMIN – par. 215 - 218 Setpoint 0

Function:When in Sleep mode the frequency converter will wakeup when the pressure is below the Wakeup pressurefor the time set in parameter 462 Enhanced sleep modetimer.

Description of choice:Set an appropriate value for the system. The unit is setin parameter 416.

465 Minimum pump frequency

(Pump min. freq.)

Value:Value par. 201 fMIN – par. 202 fMAX (Hz) 20

Function:This parameter is linked to parameter 467 MinimumPower and is used for no/low flow power curve.

Description of choice:Enter a value equal or close to the desired minimumfrequency set in parameter 201 Output frequency lowlimit, fMIN . Please note, that the extension of the no/lowflow power curve is limited by parameters 201 and 202and not by parameters 465 and 466.

466 Maximum Pump Frequency

(Pump max. freq)

Value:Value par. 201 fMIN - par. 202 fMAX (Hz) 50

Function:This parameter is linked to parameter 468 Maximumpump power and is used for the no/low flow powercurve.

Description of choice:Enter a value equal or close to the desired maximumfrequency set in parameter 202 Output frequency highlimit, fMAX .

467 Minimum Pump Power

(Min. pump power)

Value:0 – 500.000 W 0

Function:The associated power consumption at the frequencyentered in parameter 465 Minimum pump frequency.

Description of choice:Enter the no/low flow power reading at minimum pumpfrequency entered in parameter 465.

Depending on pump size or curve select W or kW inpar. 009 index [32] and [8] for fine tuning.

468 Maximum Pump Power

(Max. pump power)

Value:0 – 500.000 W 0

Function:The associated power consumption at the frequencyentered in parameter 466 Minimum pump frequency.

Description of choice:Enter the no/low flow power reading at maximumpump frequency entered in parameter 466.

Depending on pump size or curve select W or kW inpar. 009 index [32] and [8] for fine tuning.

469 No Flow Power Compensation

(NF power comp)

Value:0.01 - 2 1.2

Function:This function is used for an off-set of the no/low flowpower curve, which can be used as a safety factor orfor fine tuning of the system.

Description of choice:Description The factor is multiplied to the power val-ues. E.g. 1.2 will increase the power value with 1.2over the whole frequency range.

VLT® 2800 Series



Pro

gram

min

g

470 Dry Run Time Out

(DRY RUN TIME OUT)

Value:5-30 sec. 31 = OFF

Function:If the power is below the no/low flow power curve, run-ning at max speed for the time set in this parameter,the frequency converter will trip on Alarm 75: Dry run.In open loop operation the maximum speed does notnecessarily need to be reached before tripping.

Description of choice:Set the value to obtain the desired delay before trip-ping. Manual or automatic restart can be programmedin parameter 405 Reset function and 406 automatic re-start time.The value 30 disables Dry run detection.

471 Dry Run Interlock Timer

(Dry run int time)

Value:0.5-60 min. 30 min.

Function:This timer determines when a trip due to dry run canbe automatically reset. When the timer expires, theautomatic reset of the trip can automatically restart thefrequency converter again.

Description of choice:Parameter 406 Automatic restart time still determineshow frequent an attempt to reset a trip will be per-formed. If for instance parameter 406 Automatic restarttime is set to 10 sec. and parameter 405 Reset func-tion is set to Automatic Reset x10 the frequency con-verter will attempt to reset the trip 10 times within 100seconds. If parameter 471 is set to 30 min. the fre-quency converter will consequently not be able toperform automatic reset of dry run trip and will need amanual reset.

484 Initial ramp

(INITIAL RAMP)

Value:OFF/000.1s - 360.0 s OFF

Function:Allows the motor/equipment to be brought up to mini-mum speed (frequency) at a rate different than thenormal Ramp-Up rate (param. 207).

Description of choice:As an example, vertical pumps and other equipmentoften have a requirement to not operate below a min-imum speed any longer than necessary. Damage andexcessive wear can occur when operating below min-imum speed (frequency) for too long a period of time.The Initial Ramp is used to quickly accelerate the mo-tor/equipment to minimum speed at which point, thenormal Ramp-Up rate (parameter 207) is made active.The range of adjustment of the Initial Ramp is from000.1 second to 360.0 seconds; adjustable in 0.1 sec-ond increments. If this parameter is set to 000.0, OFFis displayed in this parameter, the Initial Ramp is notactive, and the normal Ramp-Up is active.

Fill Mode

Fill Mode eliminates the occurrence of water hammerassociated with the rapid exhausting of air from pipingsystems (such as Irrigation systems).

The frequency converter, set for Closed Loop opera-tion uses an adjustable Fill Rate, a "Filled Pressure"setpoint, an operating pressure setpoint, and a pres-sure feedback.

Fill Mode is available when:

• The VLT 2800 drive is in Closed Loop mode(parameter 100).

• Parameter 485 is not 0

• Parameter 437 is set to NORMAL

After a start command, Fill Mode operation beginswhen the frequency converter reaches minimum fre-quency - set in parameter 201.

VLT® 2800 Series



The "Filled" Setpoint - parameter 486- is actually asetpoint limit. When minimum speed is reached, thepressure feedback is looked at, and the frequencyconverter begins to ramp to the "Filled" pressure set-point at the rate established by Fill Rate parameter485.

The Fill Rate - parameter 485- is dimensioned in Units/Second. The Units will be the units selected in param-eter 416.

When the pressure feedback equals the "Filled" Set-point, the control transitions to the operating setpoint(Setpoint 1-4, param. 215-218) and continues opera-tion in standard (normal) "closed loop" mode.

The value to use for the "Filled" Setpoint parameter486, can be determined by:

1. Use the DISPLAY MODE key on the LCP todisplay FEEDBACK 1.IMPORTANT! Be sure that you have selec-ted the UNITS in parameter 416 before thisstep.

2. Operate the VLT 2800 in HAND mode andslowly advance the speed to fill the pipe whilebeing careful not to create a water hammer.

3. An observer at the end of the pipe must beable to report when the pipe is filled.

4. At that instant, stop the motor, and observethe value of pressure feedback (have theLCP display set to observe the feedback be-fore starting).

5. The value of feedback in step 4) is the valueto use in parameter 486 - "Filled" Setpoint.

The value to set in parameter 485- Fill Rate can besupplied by the system engineer from proper calcula-tion or from experience, or it can be determined ex-perimentally by performing numerous fill mode se-quences and either increasing or decreasing the valueof this parameter to obtain the fastest fill without caus-ing a water hammer.

The Fill Mode is also beneficial when bringing the mo-tor to a stop as it prevents sudden changes in pressureand flow which could also cause a water hammer.

485 Fill Rate

(FILL RATE)

Value:OFF/000000.001 - 999999.999 (units/s) - OFF

Function:Establishes the rate at which the pipe is filled.

Description of choice:The dimension of this parameter is Units/Second. TheUnits will be the value selected in parameter 416. Asan example, the Units could be Bar, or MPa, or PSI,etc. If Bar is the selected unit in parameter 416, thenthe number set in this parameter (485) would be di-mensioned as Bar/Second. Changes to this parametercan be made in steps of .001 units.

486 Filled Setpoint

(FILLED SETPOINT)

Value:Param. 414 - Param. 205 - Param. 414

Function:The value set in this parameter corresponds to thepressure that exists at the pressure sensor when thepipe is filled.

Description of choice:The Units of this parameter correspond to the unitsselected in Parameter 416. The minimum value of thisparameter is Fbmin (param. 414). The maximum valuefor this parameter is Refmax (param. 205). The setpointcan be changed in .01 steps.

VLT® 2800 Series



Pro

gram

min

g

Mechanical dimensions

The drawings below describe the mechanical dimen-sions. All dimensions are in mm.

NB!Please note that all filter options must bevertically mounted.

VLT 2803-2815 200-240 VoltVLT 2805-2815 380-480 Volt

VLT 2822 200-240 VoltVLT 2822-2840 380-480 Volt

VLT 2822 220 - 240 V, PD2VLT 2840 200-240 VoltVLT 2855-2875 380-480 Volt

VLT 2840 220-240 V, PD2VLT 2880-82 380-480V

VLT® 2800 Series


Motor coils (195N3110)

RFI 1B filter (195N3103)

Terminal cover

The drawing below gives the dimensions for NEMA 1terminal covers for VLT 2803-2875.Dimension 'a' depends on the unit type.

IP 21 solution

VLT® 2800 Series


Inst

alla

tion

Dimensions

Type Code number A B CVLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V 195N2118 47 80 170VLT 2822 200-240 V, VLT 2822-2840 380-480 V 195N2119 47 95 170VLT 2840 200-240 V, VLT 2822 PD2, TR1 2855-2875380-480 V

195N2120 47 145 170

TR1 2880-2882 380-480 V, VLT 2840 PD2 195N2126 47 205 245

EMC filter for long motor cables

192H4719

192H4720

VLT® 2800 Series


192H4893

VLT® 2800 Series


Inst

alla

tion

Mechanical installation

Please pay attention to the requirementsthat apply to installation.

The frequency converter is cooled by means of air cir-culation. For the unit to be able to release its coolingair, the minimum free distance above and below theunit must be minimum 100 mm . To protect the unitfrom overheating, it must be ensured that the ambienttemperature does not rise above the max. temperaturestated for the frequency converter and that the 24-houraverage temperature is not exceeded. The max. tem-perature and 24-hour average can be seen in Generaltechnical data. If the ambient temperature is in therange of 45 °C - 55 °C, derating of the frequency con-verter is to be carried out. See Derating for ambienttemperature. Please note that the service life of thefrequency converter will be reduced if no allowance ismade for the derating for ambient temperature.

Integration

All units with enclosure IP 20 must be integrated incabinets and panels. IP 20 is not suitable for remotemounting. In some countries, e.g. in the USA, unitswith enclosure NEMA 1 are approved for remotemounting.

Spacing for mechanical installation

All units require a minimum of 100 mm air betweenother components and vents of the enclosure.

Side-by-side

All VLT 2800 units can be installed side-by-side and inany position, as the units do not require ventilation onthe side.

NB!With the IP 21 solution all units require aminimum of 100 mm air on each side. Thismeans that side-by-side mounting is notallowed.

VLT® 2800 Series


General information about electrical installation

High voltage warning

The voltage of the frequency converter isdangerous whenever the equipment isconnected to mains. Incorrect installationof the motor or frequency converter maycause damage to the equipment, seriousinjury or death. Comply with the instruc-tions in this manual, as well as nationaland local rules and safety regulations.Touching the electrical parts may be fatal- even after the equipment has been dis-connected from mains: Wait at least 4minutes for current dissipate.

NB!It is the responsibility of the user or instal-ler to ensure correct earthing and protec-tion in accordance with national and localstandards.

Earthing

Comply with the following at installation:

• Safety earthing: The drive has a high leakagecurrent and must be earthed properly forsafety. Follow all local safety regulations.

• High frequency earthing: Keep earthing con-nections as short as possible.

Connect all earthing SYSTEMs to ensure the lowestpossible conductor impedance. The lowest possibleconductor impedance is achieved by keeping the con-ductor as short as possible and by grounding with thegreatest possible surface area. If multiple drives areinstalled in a cabinet, the cabinet backplate, whichmust be made of metal, should be used as a joint earthreference plate. The drives must be fitted to the back-plate at the lowest possible impedance.

To achieve low impedance, connect the drive to thebackplate with the drive fastening bolts. Remove allpaint from the contact points.

Extra protection

RCD relays, multiple protective earthing or earthingcan be used as extra protection, provided that localsafety regulations are complied with. In the case of anearth fault, a DC content may develop in the faulty cur-rent. Never use an RCD (ELCB relay), type A, as it isnot suitable for DC faulty currents. If RCD relays are

used, local regulations must be complied with.If RCDrelays are used, they must be:

- Suitable for protecting equipment with a DCcontent in the faulty current (3-phase bridgerectifier).

- Suitable for a pulse-shaped, brief dischargeon power-up.

- Suitable for a high leakage current.

N must be connected before L1 for single phase 200V reduced leakage current units (type code R4).

High voltage test

A high voltage test can be performed by short-circuit-ing terminals U, V, W, L1, L2 and L3, and applyingmax. 2160 V DC in 1 sec. between this short-circuitand terminal 95.

Do not perform a high voltage test be-tween the control terminals and the chas-sis, because the voltage potential of thecontrol card cannot exceed approx. 100volt with respect to chassis due to a volt-age limiting circuitry.The terminals are protected against directhazardous access through barriers.

VLT® 2800 Series


Inst

alla

tion

EMC-correct electrical installation

General points to be observed to ensure EMC-correctelectrical installation.

- Use only screened/armoured motor cablesand screened/armoured control cables.

- Connect the screen to earth at both ends.

- Avoid installation with twisted screen ends(pigtails), since this ruins the screening effectat high frequencies. Use cable clamps in-stead.

- It is important to ensure good electrical con-tact from the installation plate through theinstallation screws to the metal cabinet of thefrequency converter.

- Use starwashers and galvanically conductiveinstallation plates.

- Do not use unscreened/unarmoured motorcables in the installation cabinets.

The illustration below shows EMC-correct electrical in-stallation, in which the frequency converter has beenfitted in an installation cabinet and connected to a PLC.

VLT® 2800 Series


Electrical installation

See also the section Brake Connection.

VLT 2803-2815 200-240 V, 2805-2815 380-480 V

VLT 2822 200-240 V, 2822-2840 380-480 V

VLT® 2800 Series


Inst

alla

tion

VLT 2840 200-240 V, VLT 2822 PD2, 2855-2875380-480 V

VLT 2880-2882 380-480 V, VLT 2840 PD2

Please note that the units will be supplied with twobottom plates; one for metric glands and one for con-duits.

VLT® 2800 Series


Safety clamp

If the galvanic isolation (PELV) betweencontrol terminals and high-voltage termi-nals is to be maintained, the accompany-ing safety clamp must be fitted to VLT

2803-2815, 200-240 V, and VLT2805-2815, 380-480 V.

Pre-fuses

For all unit types, external pre-fuses must be fitted inthe mains supply to the frequency converter. For UL/cUL applications with a mains voltage of 200-240 Volt,use pre-fuses type Bussmann KTN-R (200-240 Volt)or Ferraz Shawmut type ATMR (max. 30A). For UL/cUL applications with a mains voltage of 380-480 Volt,use pre-fuses type Bussmann KTS-R (380-480 Volt).

Prefuses for UL application /cUL

Alternative fuses 380-500 V drivesVLT 2800 Bussmann

E52273BussmannE4273

BussmannE4273

BussmannE4273

BussmannE4273

BussmannE4273

SIBAE180276

Little FuseE81895

Ferraz-ShawmutE163267/E2137


RK1/JDDZ J/JDDZ T/JDDZ CC/JDDZ CC/JDDZ CC/JDDZ RK1/JDDZ RK1/JDDZ CC/JDDZ RK1/JDDZ2805-2820

KTS-R20 JKS-20 JJS-20 FNQ-R-20 KTK-R-20 LP-CC-20 5017906-020

KLS-R20 ATM-R25 A6K-20R

2855-2875

KTS-R25 JKS-25 JJS-25 5017906-025


2880-2882

KTS-R50 JKS-50 JJS-50 5014006-050

KLS-R50 - A6K-50R

Alternative Fuses 200-240 V drives

VLT 2800 BussmannE52273

BussmannE4273

BussmannE4273

SIBAE180276

Little FuseE81895



RK1/JDDZ J/JDDZ T/JDDZ RK1/JDDZ RK1/JDDZ CC/JDDZ RK1/JDDZ2803-2822 KTN-R20 JKS-20 JJN-20 5017906-02

0KLS-R20 ATM-R25 A6K-20R

2840 KTN-R25 JKS-25 JJN-25 5017906-025


Mains connection

Please note that at 1 x 220-240 Volt the neutral wiremust be attached to terminal N (L2) and the phase wiremust be connected to terminal L1 (L1).

No. N(L2) L1(L1) (L3) Mains voltage 1 x 220-240 V N L1

No. 95 Earth connection

No. N(L2) L1(L1) (L3) Mains voltage 3 x 220-240 V L2 L1 L3


No. 91 92 93 Mains voltage 3 x 380-480 V L1 L2 L3


NB!Please check that the mains voltage fitsthe mains voltage of the frequency con-

verter, which can be seen from the name-plate.

400-Volt units with RFI-filters may not beconnected to mains supplies in which thevoltage between phase and earth is morethan 300 Volts. Please note that for the ITmains and the delta earth the mains volt-age can exceed 300 Volts between phaseand earth. Units with type code R5 can beconnected to mains supplies with up to400 V between phase and earth.

See Technical data for correct dimensioning of cablecross-section. See also the section entitled Galvanicisolation for further details.

VLT® 2800 Series


Inst

alla

tion

Motor connection

Connect the motor to terminals 96, 97, 98. Connectearth to terminal 99.

No. 96 97 98 Motor voltage 0-100% of mainsvoltage.

U V W 3 wires of motor

U1W2

V1U2

W1V2

6 wires out of motor, Delta con-nected

U1 V1 W1 6 wires out of motor, Star con-nectedU2, V2, W2 to be interconnec-ted separely (optional terminalblock)

No. PE Earth connection

See Technical data for correct dimensioning of cablecross-section.

All types of three-phase asynchronous standard mo-tors can be connected to a frequency converter. Nor-mally, small motors are star-connected (230/400 V,Δ/ Y). Large motors are delta-connected (400/690 V,Δ/ Y). The correct connection mode and voltage canbe read from the motor nameplate.

NB!In motors without phase insulation paper,an LC filter should be fitted on the outputof the frequency converter.

RFI switch

Mains supply isolated from earth:If the frequency converter is supplied from an isolatedmains source (IT mains) or TT/TN-S mains with groun-ded leg, the RFI switch is recommended to be turnedoff (OFF). For further reference, see IEC 364-3. Incase optimum EMC performance is needed, parallelmotors are connected or the motor cable length is

above 25 m, it is recommended to set the switch in ONposition.In OFF position, the internal RFI capacities (filter ca-pacitors) between the chassis and the intermediatecircuit are cut off to avoid damage to the intermediatecircuit and to reduce the earth capacity currents (ac-cording to IEC 61800-3).Please also refer to the application note VLT on ITmains, MN.90.CX.02. It is important to use isolationmonitors that are capable for use together with powerelectronics (IEC 61557-8).

NB!The RFI switch is not to be operated withmains connected to the unit. Check thatthe mains supply has been disconnectedbefore operating the RFI switch.

NB!The RFI switch disconnects the capaci-tors galvanically from ground.

The switch Mk9, placed next to terminal 96, should beremoved to disconnect the RFI-filter.The RFI switch is only available on VLT 2880-2882.

Direction of motor rotation

The factory setting is for clockwise rotation with thefrequency converter transformer output connected asfollows:

Terminal 96 connected to U-phase.

Terminal 97 connected to V-phase.

Terminal 98 connected to W-phase.

The direction of rotation can be changed by switchingtwo phases on the motor terminals.

VLT® 2800 Series


Parallel connection of motors

The frequency converter is able to control several mo-tors connected in parallel. If the motors are to havedifferent rpm values, use motors with different ratedrpm values. Motor rpm is changed simultaneously,which means that the ratio between the rated rpm val-ues is maintained across the range. The total currentconsumption of the motors is not to exceed the maxi-mum rated output current IINV for the frequency con-verter.

Problems may arise at the start and at low rpm valuesif the motor sizes are widely different. This is becausethe small motors' relatively high ohmic resistance inthe stator calls for a higher voltage at the start and atlow rpm values.

In systems with motors connected in parallel, the elec-tronic thermal relay (ETR) of the frequency convertercannot be used as motor protection for the individualmotor. For this reason further motor protection mustbe used, e.g. thermistors in each motor or an individualthermal relay. (Circuit breakers are not suitable as pro-tection).

NB!Parameter 107 Automatic motor adaption,AMT cannot be used when motors areconnected in parallel. Parameter 101 Tor-que characteristic must be set to Specialmotor characteristics [8] when motors areconnected in parallel.

Motor cables

See Technical data for correct dimensioning of motorcable cross-section and length. Always comply withnational and local regulations on cable cross-section.

NB!If an unscreened/unarmoured cable isused, some EMC requirements are notcomplied with, see EMC test results in theDesign Guide.

If the EMC specifications regarding emission are to becomplied with, the motor cable must be screened/arm-oured, unless otherwise stated for the RFI filter inquestion. It is important to keep the motor cable asshort as possible so as to reduce the noise level andleakage currents to a minimum. The motor cablescreen must be connected to the metal cabinet of thefrequency converter and to the metal cabinet of themotor. The screen connections are to be made withthe biggest possible surface area (cable clamp). Thisis enabled by different installation devices in differentfrequency converters. Mounting with twisted screenends (pigtails) is to be avoided, since these spoil thescreening effect at high frequencies. If it is necessaryto break the screen to install a motor isolator or motorrelay, the screen must be continued at the lowest pos-sible HF impedance.

VLT® 2800 Series


Inst

alla

tion

Motor thermal protection

The electronic thermal relay in UL-approved frequencyconverters has received the UL-approval for singlemotor protection, when parameter 128 Motor thermalprotection has been set for ETR Trip and parameter105 Motor current, IM, N has been programmed to therated motor current (see motor nameplate).

Brake connection

No. 81 82 Brake resistor R- R+ terminals

The connection cable to the brake resistor must bescreened/armoured. Connect the screen to the metalcabinet of the frequency converter and to the metalcabinet of the brake resistor by means of cable clamps.Dimension the cross-section of the brake cable tomatch the brake torque.

See the Design Guide for dimensioning of brake resis-tors.

NB!Please note that voltages up to 850 V DCoccur on the terminals.

Earth connection

As leak current to the earth is higher than 3.5 mA, thefrequency converter must always be earthed accord-ing to prevailing national and local regulations. Toguarantee that the earth cable has a good mechanicalconnection to terminal 95, the cable cross section must

be at least 10 mm2 or 2 rated earth wires that are ter-minated separately. To increase safety you can installan RCD (Residual Current Device), which guaranteesthat the frequency converter trips when leak currentbecomes too high. See also RCD Application NoteMN.90.GX.02.

VLT® 2800 Series


Load sharing

Load sharing provides the facility to connect severalfrequency converters' DC intermediate circuits. Thisrequires that the installation is extended using extrafuses and AC coils (see drawing below). For load shar-ing parameter 400 Brake function must be set to Loadsharing [5].

Use 6.3 mm Faston Plugs for DC (Load Sharing).Contact Danfoss or see instructions no. MI.50.NX.02for further information.

No. 88 89 Loadsharing - +

Note that voltage levels of up to 850 V DCmay occur between terminals 88 and 89.

Tightening Torque, Power Terminals

Power and earth terminals must be tightened with thefollowing torques:VLT Terminals Torque [Nm]2803-2875

Power mains brake 0.5-0.6Earth 2-3

2880-2882, 2840PD2

Power mains brake 1.2-1.5Earth 2-3

Control of mechanical brake

In lifting/lowering applications you need to be able tocontrol an electromagnetic brake. The brake is con-trolled using a relay output or digital output (terminal46). The output must be kept closed (voltage-free) forthe period of time during which the frequency convert-er is not able to 'support' the motor, for example dueto the load being too great. Select Mechanical brakecontrol in parameter 323 or 341 for applications withan electromagnetic brake.When the output frequency exceeds the brake cut outvalue set in par. 138, the brake is released if the motorcurrent exceeds the preset value in parameter 140.The brake is engaged when the output frequency isless than the brake engaging frequency, which is setin par. 139.If the frequency converter is placed at alarm status orin an overvoltage situation the mechanical brake is cutin immediately.

NB!This application is only for lifting/loweringwithout a counterbalance.

Access to control terminals

All terminals to the control cables are located under-neath the protective plate on the front of the frequencyconverter. Remove the protective plate by pulling itdownwards (see drawing).

VLT® 2800 Series


Inst

alla

tion

Electrical installation, control cables

Control cables must be screened/armoured. Thescreen must be connected to the frequency converter

chassis by means of a clamp. Normally, the screenmust also be connected to the chassis of the control-ling unit (use the instructions for the unit in question).In connection with very long control cables and ana-logue signals, in rare cases depending on the instal-lation, 50/60 Hz earth loops may occur because ofnoise transmitted from mains supply cables. In thisconnection, it may be necessary to break the screenand possibly insert a 100 nF capacitor between thescreen and the chassis.

VLT® 2800 Series


Tightening torques, control cables

Control wires must be connected with a tightening tor-que of 0.22-0.25 Nm.

Electrical installation, control terminals

See section entitled Earthing of screened/armouredcontrol cables in the VLT 2800 Design Guide for thecorrect termination of control cables.

No. Function01-03 Relay outputs 01-03 can be used for

indicating status and alarms/warnings.12 24 V DC voltage supply.18-33 Digital inputs.20, 55 Common frame for input

and output terminals.42 Analog output for displaying frequency,

reference, current or torque.461 Digital output for displaying status,

warnings or alarms, as well asfrequency output.

50 +10 V DC supplyvoltage for potentiometer or thermistor.

53 Analogue voltage input 0 - 10 V DC.60 Analogue current input 0/4 - 20 mA.671 + 5 V DC supply voltage

to Profibus.68, 691 RS 485, Serial communication.701 Frame for terminals 67, 68 and 69.

Normally this terminal is not to be used.

1. The terminals are not valid for DeviceNet/CANopen.See also the DeviceNet manual, MG.90.BX.YY for fur-ther details.

Relay connection

See parameter 323 Relay output for programming ofrelay output.

Nr. 01 - 02 1 - 2 make (normally open) 01 - 03 1 - 3 break (normally closed)

NB!Please note that the cable jacket for therelay must cover the first row of controlcard terminals - otherwise the galvanicisolation (PELV) cannot be maintained.Max. cable diameter: 4 mm. See drawing.

Switches 1-4

The dip switch is only on the control card with ProfibusDP communication.The switch position shown is the factory setting.

Switches 1 and 2 are used as cable termination for theRS 485 interface. If the frequency converter is locatedas the first or last unit in the bus SYSTEM, switches 1and 2 must be ON. On the remaining frequency con-verters, switches 1 and 2 must be OFF.Switches 3 and 4 are not applied.

VLT Software Dialog

Connection to terminals 68-70 orSub D:

- PIN 3 GND

- PIN 8 P-RS 485

- PIN 9 N-RS 485

Sub D plug

An LCP 2 control unit can be connected to the Sub Dplug on the control card. Ordering number: 175N0131.LCP control unit with ordering number 175Z0401 is notto be connected.

VLT® 2800 Series


Inst

alla

tion

Connection examples

Start/stop

Start/stop using terminal 18 and coasting stop usingterminal 27.

Par. 302 Digital input = Start [7]

Par. 304 Digital input = Coasting stop inver-ted [2]

For Precise start/stop the following settings are made:

Par. 302 Digital input = Precise start/stop [27]


Pulse start/stop

Pulse start using terminal 18 and pulse stop using ter-minal 19. In addition, the jog frequency is activated viaterminal 29.

Par. 302 Digital input = Pulse start [8]

Par. 303 Digital input = Stop inverted [6]


Par. 305 Digital input = Jog [13]

Speed up/down

Speed up/down using terminals 29/33.

Par. 302 Digital input = Start [7]

Par. 303 Digital input = Freeze reference [14]

Par. 305 Digital input = Speed up [16]

Par. 307 Digital input = Speed down [17]

Potentiometer reference

Voltage reference via a potentiometer.

Par. 308 Analog input = Reference [1]

Par. 309 Terminal 53, min. scaling = 0 Volt

Par. 310 Terminal 53, max. scaling = 10 Volt

Connection of a 2-wire transmitter

Connection of a 2-wire transmitter as feedback to ter-minal 60.

Par. 314 Analog input = Feedback [2]

Par. 315 Terminal 60, min. scaling = 4 mA

Par. 316 Terminal 60, max. scaling = 20 mA

VLT® 2800 Series


VLT® 2800 Series


All

abou

t VLT

280

0

VLT® 2800 Series


Display readout

FrThe frequency converter shows the present output fre-quency in Hertz [Hz].

IoThe frequency converter shows the present outputcurrent in Amps [A].

UoThe frequency converter shows the present outputvoltage in Volt [V].

UdThe frequency converter shows the intermediate cir-cuit voltage in Volt [V].

PoThe frequency converter shows the calculated outputin kilowatt [kW].

notrunThis message is shown if an attempt is made tochange a parameter value while the motor is running.Stop the motor to change the parameter value.

LCPThis message is shown if an LCP 2 control unit is fittedand the [QUICK MENU] or [CHANGE DATA] key isactivated. If an LCP 2 control unit is fitted you can onlychange parameters with that.

HaThe frequency converter shows the present Handmode reference frequency in Herz (Hz).

SCThe frequency converter shows scaled output fre-quency (the present output frequency x parameter008).

Warnings/alarm messages

A warning or an alarm will appear in the display as anumerical code Err. xx. A warning will be shown onthe display until the fault has been corrected, while analarm will continue to flash until the [STOP/RESET]key is activated.The table shows the various warningsand alarms, and whether the fault locks the frequencyconverter. After a Trip locked the mains supply is cutoff and the fault is corrected. The mains supply is re-connected and the frequency converter is reset. Thefrequency converter is now ready. A Trip can be resetmanually in three ways:

1. Via the operating key [STOP/RESET].

2. Via a digital input.

3. Via serial communication.

It is also possible to choose an automatic reset in pa-rameter 405 Reset function. When a cross appears inboth warning and alarm, this can mean that a warningcomes before an alarm. It can also mean that it is pos-sible for the user to programme whether a warning oran alarm will appear for a given fault. For example, thisis possible in parameter 128 Motor thermal protec-tion. After a trip the motor will coast, and alarm andwarning will blink on the frequency converter, but if thefault disappears only the alarm will blink. After a resetthe frequency converter will be ready to start operationagain.

VLT® 2800 Series


All

abou

t VLT

280

0

No. Description Warning Alarm Triplocked

2 Live zero error (LIVE ZERO ERROR) X X X4 Mains phase loss (MAINS PHASE LOSS) X X X5 Voltage warning high (DC LINK VOLTAGE HIGH) X 6 Voltage warning low (DC LINK VOLTAGE LOW) X 7 Overvoltage (DC LINK OVERVOLT) X X X8 Undervoltage (DC LINK UNDERVOLT) X X X9 Inverter overload (INVERTER TIME) X X 10 Motor overloaded ( MOTOR, TIME) X X 11 Motor thermistor (MOTOR THERMISTOR) X X 12 Current limit (CURRENT LIMIT) X X 13 Overcurrent (OVERCURRENT) X X X14 Earth fault (EARTH FAULT) X X15 Switch mode fault (SWITCH MODE FAULT) X X16 Short-circuit (CURR. SHORT CIRCUIT) X X17 Serial communication timeout (STD BUS TIMEOUT) X X 18 HPFB bus timeout (HPFB TIMEOUT) X X 33 Out of frequency range (OUT FREQ RNG/ROT LIM) X 34 HPFB communication fault (PROFIBUS OPT. FAULT) X X 35 Inrush fault (INRUSH FAULT) X X36 Overtemperature (OVERTEMPERATURE) X X 37-45 Internal fault (INTERNAL FAULT) X X50 AMT not possible X 51 AMT fault re. nameplate data (AMT TYPE.DATA FAULT) X 54 AMT wrong motor (AMT WRONG MOTOR) X 55 AMT timeout (AMT TIMEOUT) X 56 AMT warning during AMT (AMT WARN. DURING AMT) X 99 Locked (LOCKED) X

LED indicationWarning yellowAlarm red

Trip locked yellow and red

WARNING/ALARM 2: Live zero faultThe voltage or current signal on terminal 53 or 60 isbelow 50% of the preset value in parameter 309 or 315Terminal, min. scaling.

WARNING/ALARM 4: Mains phase faultNo phase on mains supply side. Check the supplyvoltage to the frequency converter. This fault is onlyactive in 3-phase mains supply. The alarm can alsooccur when the load is pulsing. In this instance thepulses must be dampened, e.g. using an inertia disc.

WARNING 5: Voltage warning highIf the intermediate circuit voltage (UDC) is higher thanVoltage warning high the frequency converter will givea warning and the motor will continue to run un-changed. If the UDC remains above the voltage warn-ing limit, the inverter will trip after a set time. The timedepends on the device, and is set at 5 - 10 sec. Note:The frequency converter will trip with an alarm 7 (over-

voltage). A voltage warning can occur when the con-nected mains voltage is too high. Check whether thesupply voltage is suitable for the frequency converter,see Technical data. A voltage warning can also occurif the motor frequency is reduced too quickly due toramp down time being too short.

WARNING 6: Voltage warning lowIf the intermediate circuit voltage (UDC) is lower thanVoltage warning low the frequency converter will givea warning and the motor will continue to run un-changed. A voltage warning can occur when the con-nected mains voltage is too low. Check whether thesupply voltage is suitable for the frequency converter,see Technical data. When the frequency converter isswitched off a brief warning 6 (and warning 8) appears.

WARNING/ALARM 7: OvervoltageIf the intermediate voltage (UDC) goes over the inver-ter's Overvoltage limit the inverter will be switched offuntil the UDC has once more fallen below the over-voltage limit. If the UDC remains above the overvoltaglimit the inverter will trip after a set time. The time de-pends on the device, and is set at 5 - 10 sec. An

VLT® 2800 Series


overvoltage in the UDC can occur when the motor fre-quency is reduced too quickly due to ramp down timebeing too short. When the inverter is switched off a tripreset is generated. Note: Voltage warning high (warn-ing 5) will thus also be able to generate an alarm 7.

WARNING/ALARM 8: UndervoltageIf the intermediate circuit voltage (UDC) is lower thanthe inverter's Undervoltage limit the inverter will beswitched off until the UDC once more goes above theundervoltage limit. If the UDC remains under the un-dervoltage limit, the inverter will trip after a set time. Thetime depends on the device, and is set at 2 - 15 sec.An undervoltage can occur when the connected mainsvoltage is too low. Check whether the supply voltageis suitable for the frequency converter, see Technicaldata. When the frequency converter is switched off aalarm 8 (and alarm 6) is displayed briefly and a tripreset is generated. Note: Voltage warning low (warning6) will thus also be able to generate an alarm 8.

WARNING/ALARM 9: Inverter overloadElectronic thermal inverter protection indicates that thefrequency converter is close to tripping due to over-loading (output current too high for too long). Thecounter for electronic thermal inverter protection givesa warning at 98% and trips at 100% accompanied byan alarm. The frequency converter cannot be resetuntil the counter drops below 90%. This fault arisesbecause the frequency converter has been overloa-ded for too long.

WARNING/ALARM 10: Motor overloadedAccording to the electronic thermal inverter protectionthe motor is too hot. In parameter 128 the user canselect whether the frequency converter should emit awarning or an alarm when the counter reaches 100%.This fault is due to the motor being overloaded by morethan 100% for too long. Check that motor parameters102-106 are set correctly.

WARNING/ALARM 11: Motor thermistorThe motor is too hot or the thermistor/thermistor con-nection has been disconnected. In parameter 128Thermal motor protection the user can select whetherthe frequency transformer emits a warning or an alarm.Check that the PTC thermistor is correctly connectedbetween terminals 18, 19, 27 or 29 (digital input) andterminal 50 (+ 10 V supply).

WARNING/ALARM 12: Current limitThe output current is greater than the value in param-eter 221 Current Limit LIM , and the frequency converterwill trip after a set time, selected in parameter 409 Tripdelay overcurrent.

WARNING/ALARM 13: OvercurrentThe inverter's peak current limit (approx. 200% of ratedoutput current) has been exceeded. The warning willlast approx. 1-2 sec, and the frequency converter willthen trip and emit an alarm. Switch off the frequencyconverter and check whether the motor shaft can beturned, and whether the size of the motor is suitablefor the frequency converter.

ALARM 14: Earth faultThere is a discharge from the output phases to earth,either in the cable between the frequency converterand the motor, or in the motor. Turn off the frequencyconverter and remove the earth fault.

ALARM 15: Switch mode faultFault in switch mode power supply (internal supply).Contact your Danfoss supplier.

ALARM: 16: Short-circuitThere is a short-circuit on the motor terminals or in themotor. Disconnect the mains supply to the frequencyconverter and remove the short-circuit.

WARNING/ALARM 17: Serial communication time-outThere is no serial communication to the frequencyconverter. The warning will only be active when 514Bus timeout function is set to a value other than OFF.If parameter 514 Bus timeout function is set to Stopand trip [5], it will first give a warning and then rampdown and trip out accompanied by an alarm. Param-eter 513 Bus timeout can if required be increased.

WARNING/ALARM 18: HPFB bus timeoutThere is no serial communication to the frequencyconverter's communication option card. This warningwill only be active when parameter 804 Bus timeoutfunction is set to a value other than OFF. If parameter804 Bus timeout function is set to Stop and trip, it willfirst give a warning and then ramp down and trip outaccompanied by an alarm. Parameter 803 Bus time-out can if required be increased.

WARNING 33: Out of frequency rangeThis warning is active if the output frequency hasreached Output frequency low limit (parameter 201) orOutput frequency high limit (parameter 202). If the fre-quency converter is in Process regulation, closed loop(parameter 100) the warning will be active in the dis-play. If the frequency converter is in another mode thanProcess regulation, closed loop, bit 008000 Out of fre-quency range in extended status word will be active,but there will not be a warning in the display.

VLT® 2800 Series


All

abou

t VLT

280

0

WARNING/ALARM 34: HPFB communication faultCommunication fault only occurs in Fieldbus versions.Regarding alarmtype, please see parameter 953 infieldbus literature.

ALARM 35: Inrush faultThis alarm occurs when the frequency converter hasbeen connected to the mains supply too many timeswithin 1 minute.

WARNING/ALARM 36: OvertemperatureIf the temperature inside the power module risesabove 75 - 85 °C (depending on the device) the fre-quency converter will emit a warning, and the motorwill continue to run unchanged. If the temperature con-tinues to rise, the switch frequency is reduced auto-matically. See Temperature-dependent switchingfrequency.If the temperature inside the power module risesabove 92 - 100 °C (depending on the unit) the fre-quency converter will cut out. The temperature faultcannot be reset until the temperature has dropped tobelow 70 °C. The tolerance is ± 5 °C. The temperaturecan be caused by the following:

- The ambient temperature too high.

- Motor cable too long.

- Too high mains voltage.

ALARM 37-45: Internal faultIf one of these failures occurs, please contact Danfoss.

Alarm 37, internal fault number 0: Communication faultbetween control card and BMC.

Alarm 38, internal fault number 1: Flash EEPROM faulton control card.

Alarm 39, internal fault number 2: RAM fault on controlcard.

Alarm 40, internal fault number 3: Calibration constantin EEPROM.

Alarm 41, internal fault number 4: Data values in EE-PROM.

Alarm 42, internal fault number 5: Fault in motor pa-rameter database.

Alarm 43, internal fault number 6: General power cardfault.

Alarm 44, internal fault number 7: Minimum softwareversion of control card or BMC.

Alarm 45, internal fault number 8: I/O fault (digital in-put/output, relay or analog input/output).

NB!When restarting after an alarm 38-45, thefrequency converter will display an alarm37. In parameter 615 the actual alarmcode can be read.

ALARM 50: AMT not possibleOne of the following three possibilities can occur:

- The calculated RS value falls outside permit-ted limits.

- The motor current in at least one of the motorphases is too low.

- The motor in use is too small for AMT calcu-lations to be performed.

ALARM 51: AMT Fault regarding nameplate dataThere is inconsistency between the registered motordata. Check the motor data for the relevant setup.

ALARM 52: AMT missing motor phaseThe AMT function has detected a missing motorphase.

ALARM 55: AMT timeoutCalculations are taking too long, possibly due to noiseon the motor cables.

ALARM 56: AMT warning during AMTA frequency converter warning is given while AMT isbeing performed.

WARNING 99: LockedSee parameter 18.

Alarm/warning limits: Without brake With brake Without brake With brakeVLT 2800 1 / 3 x 200 - 240 V

[VDC]1 / 3 x 200 - 240 V[VDC]

3 x 380 - 480 V[VDC]

3 x 380 - 480 V[VDC]

Undervoltage 215 215 410 410Voltage warning low 230 230 440 440Voltage warning high 385 400 765 800Overvoltage 410 410 820 820

The voltages stated are the intermediate circuit volt-age of the frequency converter with a tolerance of ± 5

%. The corresponding line voltage is the intermediatecircuit voltage divided by 1,35.

VLT® 2800 Series


Warning words, extended status words andAlarmwords

Warning words, status words and Alarm words appearin the display in Hex format. If there are several warn-ings, status words or alarms, a total of all the warnings,status words or alarms will be displayed. Warningwords, status words and alarm words can also be readout using the serial bus in parameters 540, 541 and538 respectively.

Bit (Hex) Warning words000008 HPFB bus timeout000010 Standard bus timeout000040 Current limit000080 Motor thermistor000100 Motor overload000200 Inverter overload000400 Undervolt000800 Overvolt001000 Voltage warning low002000 Voltage warning high004000 Phase loss010000 Live zero error400000 Out of frequency range800000 Profibus communication fault40000000 Switch mode warning80000000 Heat sink temperature high

Bit (Hex) Extended status words000001 Ramping000002 AMT running000004 Start forw./reverse000008 Slow down000010 Catch-up000020 Feedback high000040 Feedback low000080 Output current high000100 Output current low000200 Output frequency high000400 Output frequency low002000 Braking008000 Out of frequency range

Bit (Hex) Alarm words000002 Triplock000004 AMT tuning fail000040 HPFB bus timeout000080 Standard bus timeout000100 Curr. short circuit000200 Switch mode fault000400 Earth fault000800 Overcurrent002000 Motor thermistor004000 Motor overload008000 Inverter overload010000 Undervolt020000 Overvolt040000 Phase loss080000 Live zero error100000 Heat sink temperature too high2000000 Profibus communication fault8000000 Inrush fault10000000 Internal fault

VLT® 2800 Series


All

abou

t VLT

280

0

Special conditions

Aggressive environments

As all other electronic equipment, a frequency con-verter contains a number of mechanical and electroniccomponents, which to a varying extent are vulnerableto environmental impact.

Consequently, the frequency converter isnot to be installed in environments, whereliquids, particles or gases are in the airthat would impact and damage the elec-tronics. Unless the necessary measuresare taken to protect the frequency con-verter, there is a risk of stoppages, whichreduce the service life of the frequencyconverter.

Liquids can be carried through the air and condensein the frequency converter. In addition, liquids may fa-cilitate galvanic corrosion of components and metalparts. Steam, oil and brine may cause corrosion ofcomponents and metal parts. In these areas, it is rec-ommended to fit units in cabinets. As a minimum,cabinets should be enclosure IP 54.

Particles in the air, such as dust particles, may lead tomechanical, electrical and thermal faults on the fre-quency converter. Typical indicators that there are toomany particles in the air are dust particles around thefrequency converter fan. In very dusty areas, cabinetfitting of units is recommended. As a minimum, cabi-nets should be enclosure IP 54.

Aggressive gases, such as sulphur, nitrogen andchlorine compounds, together with high humidity andtemperature, facilitate possible chemical processes onthe components of the frequency converter. Thesechemical processes quickly impact and damage theelectronics. In these areas, cabinet fitting with fresh-aircirculation in the cabinet is recommended, thereby en-suring that aggressive gases are kept away from thefrequency converter.

NB!Fitting of frequency converters in aggres-sive environments increases the risk ofstoppages, in addition to considerably re-ducing the service life of the unit.

Before the frequency converter is installed, it must bechecked whether there are liquids, particles or gasesin the air. This can be done by looking at existing in-stallations in the same environment. Typical indicatorsof harmful airborne liquids are water or oil on metalparts or corrosion of metal parts. Too many dust par-

ticles are typically observed on top of installation cab-inets and on existing electrical installations. Indicatorsthat there are aggressive gases in the air are copperrails and cable ends that are black on existing electricalinstallations.

Derating for ambient temperature

The ambient temperature (TAMB,MAX) is the maximumtemperature allowed. The average (TAMB,AVG) meas-ured over 24 hours, must be at least 5 °C lower. If thefrequency converter operates at temperatures above45 °C, a derating of the rated output current is neces-sary.

VLT® 2800 Series


Derating for high switching frequency - VLT 2800

A higher switching frequency (to be set in parameter411, Switching frequency) leads to higher losses in theelectronics of the frequency converter.

VLT 2800 has a pulse pattern in which it is possible toset the switching frequency from 3.0- 10.0/14.0 kHz.

The frequency converter will automatically derate therated output current IVLT,N, when the switching frequen-cy exceeds 4.5 kHz.

In both cases, the reduction is carried out linearly,down to 60% of IVLT,N.

Temperature-dependent switch frequency

This function ensures the highest possible switch fre-quency without the frequency converter becomingthermally overloaded. The internal temperature is theactual expression of the degree to which the switchfrequency can be based on the load, the ambient tem-perature, the supply voltage and the cable length.The function ensures that the frequency converter au-tomatically adjusts the switch frequency between fsw,

min and fsw, max (parameter 411), see drawing below.

When using the LC filter the minimum switch frequen-cy is 4.5 kHz.

Galvanic Isolation (PELV)

PELV (Protective Extra Low Voltage) insulation is ach-ieved by inserting galvanic isolators between the con-trol circuits and circuits that are connected to the mainspotential. The VLT is designed to meet the require-ments for protective separation by means of having thenecessary creepage and clearance distances. Theserequirements are described in standard EN 50 178. Itis also a requirement that the installation is carried outas described in local/national regulations regardingPELV.The Protective Extra Low Voltage (PELV) require-ments stated in IEC 61800-5-1 are not fulfilled at alti-tudes above 2000 m (6562 ft.). For 200V frequencyconverters the requirements are not fulfilled at alti-tudes above 5000 m (16 404 ft.). Please contact Dan-foss Drives for further information.

All control terminals, terminals for serial communica-tion and relay terminals are safely separated from themains potential, i.e. they comply with the PELV re-quirements. Circuits that are connected to control ter-minals 12, 18, 19, 20, 27, 29, 33, 42, 46, 50, 53, 55and 60 are galvanically connected to one another. Se-rial communication connected to fieldbus is galvani-cally insulated from the control terminals, although thisis only a functional insulation.The relay contacts on terminals 1 - 3 are insulated fromthe other control circuits with reinforced/double isola-tion, i.e. PELV is observed for these, even thoughthere is mains potential at the relay terminals.

The circuit elements described below form the safeelectric separation. They fulfill the requirements for re-

VLT® 2800 Series


All

abou

t VLT

280

0

inforced/double insulation and associated testing pur-suant to EN 50 178.

1. Transformer and optical separation in voltagesupply.

2. Optical insulation between Basic Motor Con-trol and control card.

3. Insulation between the control card and thepower part.

4. Relay contacts and terminals relating to othercircuits on the control card.

PELV insulation of the control card is guaranteed un-der the following conditions:

- TT network with maximum 300 Vrms be-tween phase and earth.

- TN network with maximum 300 Vrms be-tween phase and earth.

- IT network with maximum 400 Vrms betweenphase and earth.

In order to maintain PELV all connections made to thecontrol terminals must be PELV, e.g. thermistor mustbe reinforced/double insulated.

EMC emission

The following system results are achieved on a systemconsisting of a VLT Series 2800 with screened/arm-oured control cable, control box with potentiometer,screened/armoured motor cable and screened/arm-oured brake cable as well as an LCP2 with cable.

VLT 2803-2875 Emission Industrial environment Residential, commercial and light industry EN 55011 class 1A EN 55011 class 1BSetup Cable-borne

150 kHz- 30 MHzRadiated

30 MHz - 1 GHzCable-borne

150 kHz - 30 MHzRadiated

30 MHz - 1 GHz 3 x 480 V version with 1ARFI filter

Yes25 m screened/arm-

oured


oured

No No

3 x 480 V version with 1ARFI filter (R5: For ITmains)


oured


oured

No No

1 x 200 V version with 1ARFI filter 1.


oured


oured


oured

No

3 x 200 V version with 1ARFI filter (R4: For usewith RCD)


oured


oured


oured

No

3 x 480 V version with 1A+1B RFI filter


oured


oured


oured

No

1 x 200 V version with 1A+1B RFI filter 1.

Yes100 m screened/

armoured


oured


oured

No

VLT 2880-2882 Emission Industrial environment Residential, commerce and light industry EN 55011 class 1A EN 55011 class 1BSetup Cable-borne

150 kHz- 30 MHzRadiated

30 MHz - 1 GHzCable-borne

150 kHz - 30 MHzRadiated

30 MHz - 1 GHz 3 x 480 V version with 1BRFI filter

Yes50 m

Yes50 m

Yes50 m

No

1. For VLT 2822-2840 3 x 200-240 V the same values apply as for the 480 V version with 1A RFI filter.

• EN 55011: EmissionLimits and methods of measurement of radio disturbance characteristics of indus-trial, scientific and medical (ISM) high-frequency equipment.

Class 1A:Equipment used in an industrial environment.

Class 1B:Equipment used in areas with a public supply network (residential, commerce and light industry).

UL Standard This device is UL-approved.

VLT® 2800 Series


General technical data

Mains supply (L1, L2, L3):Supply voltage VLT 2803-2840 220-240 V (N, L1) 1 x 220/230/240 V ±10%Supply voltage VLT 2803-2840 200-240 V 3 x 200/208/220/230/240 V ±10%Supply voltage VLT 2805-2882 380-480 V 3 x 380/400/415/440/480 V ±10%Supply voltage VLT 2805-2840 (R5) 380 / 400 V + 10 %Supply frequency 50/60 Hz ± 3 HzMax. imbalance on supply voltage ± 2.0% of rated supply voltageTrue Power Factor (λ) 0.90 nominal at rated loadDisplacement Power Factor (cos φ) near unity (> 0.98)Number of connections at supply input L1, L2, L3 2 times/min.Max. short-circuit value 100,000 A

See Special Conditions section in the Design Guide

Output data (U, V, W):Output voltage 0 - 100% of supply voltageOutput frequency 0.2 - 132 Hz, 1 - 1000 HzRated motor voltage, 200-240 V units 200/208/220/230/240 VRated motor voltage, 380-480 V units 380/400/415/440/460/480 VRated motor frequency 50/60 HzSwitching on output UnlimitedRamp times 0.02 - 3600 sec.

Torque characteristics:

Starting torque (parameter 101 Torque characteristic = Constant torque) 160% in 1 min.*

Starting torque (parameter 101 Torque characteristics = Variable torque) 160% in 1 min.*

Starting torque (parameter 119 High starting torque ) 180% for 0.5 sec.Overload torque (parameter 101 Torque characteristic = Constant torque) 160%*Overload torque (parameter 101 Torque characteristic = Variable torque) 160%*

Percentage relates to frequency converter's nominal current.* VLT 2822 PD2 / 2840 PD2 1 x 220 V only 110% in 1 min.

Control card, digital inputs:Number of programmable digital inputs 5Terminal number 18, 19, 27, 29, 33Voltage level 0 - 24 V DC (PNP positive logic)Voltage level, logic '0' < 5 V DCVoltage level, logic '1' > 10 V DCMaximum voltage on input 28 V DCInput resistance, Ri (terminals 18, 19, 27, 29) approx. 4 kΩInput resistance, Ri (terminal 33) approx. 2 kΩ

All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. See sectionentitled Galvanic Isolation.

VLT® 2800 Series


All

abou

t VLT

280

0

Control card, analog inputs:Number of analog voltage inputs 1 pcs.Terminal number 53Voltage level 0 - 10 V DC (scaleable)Input resistance, Ri approx. 10 kΩMax. voltage 20 VNumber of analog current inputs 1 pcs.Terminal number 60Current level 0/4 - 20 mA (scaleable)Input resistance, Ri approx. 300 ΩMax. current 30 mAResolution for analog inputs 10 bitAccuracy of analog inputs Max. error 1% of full scaleScan interval 13.3 msec

The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. Seesection entitled Galvanic Isolation.

Control card, pulse inputs:Number of programmable pulse inputs 1Terminal number 33Max. frequency at terminal 33 67.6 kHz (Push-pull)Max. frequency at terminal 33 5 kHz (open collector)Min. frequency at terminal 33 4 HzVoltage level 0 - 24 V DC (PNP positive logic)Voltage level, logic '0' < 5 V DCVoltage level, logic '1' > 10 V DCMaximum voltage on input 28 V DCInput resistance, Ri approx. 2 kΩScan interval 13.3 msecResolution 10 bitAccuracy (100 Hz- 1 kHz) terminal 33 Max. error: 0.5% of full scaleAccuracy (1 kHz - 67.6 kHz) terminal 33 Max. error: 0.1% of full scale

The pulse input (terminal 33) is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.See section entitled Galvanic Isolation.

Control card, digital/frequency output:Number of programmable digital/pulse outputs 1 pcs.Terminal number 46Voltage level at digital/frequency output 0 - 24 V DC (O.C PNP)Max. output current at digital/frequency output 25 mA.Max. load at digital/frequency output 1 kΩMax. capacity at frequency output 10 nFMinimum output frequency at frequency output 16 HzMaximum output frequency at frequency output 10 kHzAccuracy on frequency output Max. error: 0.2 % of full scaleResolution on frequency output 10 bit

The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. See sectionentitled Galvanic Isolation.

VLT® 2800 Series


Control card, analog output:Number of programmable analog outputs 1Terminal number 42Current range at analog output 0/4 - 20 mAMax. load to common at analog output 500 ΩAccuracy on analog output Max. error: 1.5 % of full scaleResolution on analog output 10 bit

The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. Seesection entitled Galvanic Isolation.

Control card, 24 V DC output:Terminal number 12Max. load 130 mA

The 24 V DC supply is galvanically isolated from the supply voltage (PELV) , but has the same potential as theanalogue and digital inputs and outputs. See section entitled Galvanic Isolation.

Control card, 10 V DC output:Terminal number 50Output voltage 10.5 V ±0.5 VMax. load 15 mA

The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. Seesection entitled Galvanic Isolation.

Control card, RS 485 serial communication:Terminal number 68 (TX+, RX+), 69 (TX-, RX-)Terminal number 67 + 5 VTerminal number 70 Common for terminals 67, 68 and 69

Full galvanic isolation. See section entitled Galvanic Isolation.For CANopen/DeviceNet units, see VLT 2800 DeviceNet manual, MG.90.BX.YY.

Relay outputs:1)

Number of programmable relay outputs 1Terminal number, control card (resisitvie and inductive load) 1-3 (break), 1-2 (make)Max. terminal load (AC1) on 1-3, 1-2, control card 250 V AC, 2 A, 500 VAMax. terminal load (DC1 (IEC 947)) on 1-3, 1-2, control card 25 V DC, 2 A /50 V DC, 1A, 50WMin. terminal load (AC/DC) on 1-3, 1-2, control card 24 V DC 10 mA, 24 V AC 100 mA

The relay contact is separated from the rest of the circuit by strengthened isolation.

Note: Rated values resistive load - cosphi >0.8 for up to 300,000 operations.Inductive loads at cosphi 0.25 approximately 50% load or 50% life time.

VLT® 2800 Series


All

abou

t VLT

280

0

Cable lengths and cross sections:Max. motor cable length, screened/armoured cable 40 mMax. motor cable length, unscreened/unarmoured cable 75 mMax. motor cable length, screened/armoured cable and motor coil 100 mMax. motor cable length, unscreened/unarmoured cable and motor coil 200 mMax. motor cable length, screened/armoured cable and RFI/1B filter 200 V, 100 mMax. motor cable length, screened/armoured cable and RFI/1B filter 400 V, 25 mMax. motor cable length, screened/armoured cable and RFI 1B/LC filter 400 V, 25 m

Max. cross section to motor, see next section.

Max. cross section to control wires, rigid wire 1.5 mm2/16 AWG (2 x 0.75 mm2)

Max. cross section to control cables, flexible cable 1 mm2/18 AWG

Max. cross section to control cables, cable with enclosed core 0.5 mm2/20 AWG

When complying with EN 55011 1A and EN 55011 1B the motor cable must in certain instances be reduced.See EMC emission.

Control characteristics:Frequency range 0.2 - 132 Hz, 1 - 1000 HzResolution of output frequency 0.013 Hz, 0.2 - 1000 HzRepeat accuracy of Precise start/stop(terminals 18, 19) ± 0.5 msecSystem response time (terminals 18, 19, 27, 29, 33) 26.6 msecSpeed control range (open loop) 1:10 of synchronous speedSpeed control range (closed loop) 1:120 of synchronous speedSpeed accuracy (open loop) 150 - 3600 rpm: Max. error of ±23 rpmSpeed accuracy (closed loop) 30 - 3600 rpm: Max. error of ±7.5 rpm

All control characteristics are based on a 4-pole asynchronous motor

Surroundings:Enclosure IP 20Enclosure with options NEMA 1Vibration test 0.7 gMax. relative humidity 5% - 93% during operationAmbient temperature Max. 45 °C (24-hour average max. 40 °C)

Derating for high ambient temperature, see special conditions in the Design Guide

Min. ambient temperature during full-scale operation 0 °CMin. ambient temperature at reduced performance - 10 °CTemperature during storage/transport -25 - +65/70 °CMax. altitude above sea level 1000 m

Derating for high air pressure, see special conditions in the Design Guide

EMC standards, Emission EN 61081-2, EN 61800-3, EN 55011

EMC standards, ImmunityEN 50082-1/2, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN

61000-4-6, EN 61800-3

See section on special conditions in the Design Guide

VLT® 2800 Series


Safeguards:• Electronic thermal motor protection against

overload.

• Temperature monitoring of the power moduleensures that the frequency converter cuts outif the temperature reaches 100 °C. An over-load temperature cannot be reset until thetemperature of the power module is below 70°C.

• The frequency converter is protected againstshort-circuits on motor terminals U, V, W.

• If a mains phase is missing, the frequencyconverter will cut out.

• Monitoring of the intermediate circuit voltageensures that the frequency converter cuts outif the intermediate circuit voltage is too low ortoo high.

• The frequency converter is protected againstearth fault on motor terminals U, V, W.

VLT® 2800 Series


All

abou

t VLT

280

0

Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V

According to . internationalstandards

Type 2803 2805 2807 2811 2815 2822 2822PD2

2840 2840PD2

Output current IINV. [A] 2.2 3.2 4.2 6.0 6.8 9.6 9.6 16 16(3 x 200-240V) IMAX (60s) [A] 3.5 5.1 6.7 9.6 10.8 15.3 10.6 25.6 17.6Output power (230V)

SINV. [KVA] 0.9 1.3 1.7 2.4 2.7 3.8 3.8 6.4 6.4

Typical shaft output PM,N [kW] 0.37 0.55 0.75 1.1 1.5 2.2 2.2 3.7 3.7Typical shaft output PM,N [HP] 0.5 0.75 1.0 1.5 2.0 3.0 3.0 5.0 5.0Max. cable crosssection, motor

[mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10 4/10 4/10 16/6

Input current IL,N [A] 5.9 8.3 10.6 14.5 15.2 - 22.0 - 31.0(1 x 220-240 V) IL,MAX (60s) [A] 9.4 13.3 16.7 23.2 24.3 - 24.3 - 34.5Input current IL,N [A] 2.9 4.0 5.1 7.0 7.6 8.8 8.8 14.7 14.7(3 x 200-240 V) IL,MAX (60s) [A] 4.6 6.4 8.2 11.2 12.2 14.1 9.7 23.5 16.2Max. cable crosssection, power

[mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10 4/10 4/10 16/6

Max. pre-fuses IEC/UL2) [A] 20/20 20/20 20/20 20/20 20/20 20/20 35/35 25/25 50/50Efficiency3) [%] 95 95 95 95 95 95 95 95 95Power loss at 100%load

[W] 24 35 48 69 94 125 125 231 231

Weight [kg] 2.0 2.0 2.0 2.0 2.0 3,7 6.0 6.0 18.50Enclosure4 type IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20/

NEMA1

1. American Wire Gauge. Max. cable cross section isthe largest cable cross section that can be attached tothe terminals. Always observe national and local reg-ulations.2. Type gG pre-fuses must be used for installation ac-cording to IEC rules. If you want to maintain UL/cULyou must use pre-fuses of the type Bussmann KTN-R200 V, KTS-R 500 V or Ferraz Shawmut, type ATMR(max. 30A). The fuses must be placed for protection ina circuit that is capable of supplying a maximum of100,000 amps RMS (symmetrical), 500 V maximum.3. Measured using a 25 m screened/armoured motorcable with a rated load and rated frequency.4. IP20 is standard for VLT 2805-2875, whereasNEMA 1 is an option.

VLT® 2800 Series


Technical data, mains supply 3 x 380 - 480 V

According to international standards Type 2805 2807 2811 2815 2822 2830Output current IINV. [A] 1.7 2.1 3.0 3.7 5.2 7.0(3 x 380-480V) IMAX (60s) [A] 2.7 3.3 4.8 5.9 8.3 11.2Output power (400 V) SINV. [KVA] 1.1 1.7 2.0 2.6 3.6 4.8Typical shaft output PM,N [kW] 0.55 0.75 1.1 1.5 2.2 3.0Typical shaft output PM,N [HP] 0.75 1.0 1.5 2.0 3.0 4.0Max. cable cross section,motor

[mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10

Input current IL,N [A] 1.6 1.9 2.6 3.2 4.7 6.1(3 x 380-480 V) IL,MAX(60s)[A] 2.6 3.0 4.2 5.1 7.5 9.8Max. cable cross section,power

[mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10

Max. pre-fuses IEC/UL2) [A] 20/20 20/20 20/20 20/20 20/20 20/20Efficiency3) [%] 96 96 96 96 96 96Power loss at 100% load [W] 28 38 55 75 110 150Weight [kg] 2.1 2.1 2.1 2.1 3.7 3.7Enclosure4 type IP 20 IP 20 IP 20 IP 20 IP 20 IP 20

According to international standards Type 2840 2855 2875 2880 2881 2882Output current IINV. [A] 9.1 12 16 24 32.0 37.5(3 x 380-480V) IMAX (60s) [A] 14.5 19.2 25.6 38.4 51.2 60.0Output power (400 V) SINV. [KVA] 6.3 8.3 11.1 16.6 22.2 26.0Typical shaft output PM,N [kW] 4.0 5.5 7.5 11.0 15.0 18.5Typical shaft output PM,N [HP] 5.0 7.5 10.0 15.0 20.0 25.0Max. cable cross sec-tion, motor

[mm2/AWG] 1) 4/10 4/10 4/10 16/6 16/6 16/6

Input current IL,N [A] 8.1 10.6 14.9 24.0 32.0 37.5(3 x 380-480 V) IL,MAX(60s)[A] 13.0 17.0 23.8 38.4 51.2 60Max. cable cross sec-tion, power

[mm2/AWG] 1) 4/10 4/10 4/10 16/6 16/6 16/6

Max. pre-fuses IEC/UL2) [A] 20/20 25/25 25/25 50/50 50/50 50/50Efficiency3) [%] 96 96 96 97 97 97Power loss at 100% load [W] 200 275 372 412 562 693Weight [kg] 3.7 6.0 6.0 18.5 18.5 18.5Enclosure4 type IP20 IP20 IP20 IP20/

NEMA 1IP20/

NEMA 1IP20/

NEMA 1

1. American Wire Gauge. Max. cable cross section isthe largest cable cross section that can be attached tothe terminals. Always observe national and local reg-ulations.2. Type gG pre-fuses must be used for installation ac-cording to IEC rules. If you want to maintain UL/cULyou must use pre-fuses of the type Bussmann KTN-R200 V, KTS-R 500 V or Ferraz Shawmut, type ATMR(max. 30A). The fuses must be placed for protection ina circuit that is capable of supplying a maximum of100,000 amps RMS (symmetrical), 500 V maximum.See table under Pre-fuses.3. Measured using a 25 m screened/armoured motorcable with a rated load and rated frequency.4. IP20 is standard for VLT 2805-2875, whereasNEMA 1 is an option.

VLT® 2800 Series


All

abou

t VLT

280

0

Available literature

Supplied with the unit

Below is a list of the literature available for VLT 2800.It must be noted that there may be deviations from onecountry to the next.

Supplied with the unit:Operating Instructions MG.27.AX.YY

Various literature for VLT 2800:Design Guide MG.27.EX.YYData sheet MD.27.AX.YY

Instructions for VLT 2800:LCP remote-mounting kit MI.56.AX.51Filter instruction MI.28.B1.02VLT 2800 DeviceNet cable MI.28.F1.02Cold plate MI.28.D1.02Precise stop MI.28.C1.02

Communication with VLT 2800:Profibus manual MG.90.AX.YYVLT 2800 DeviceNet manual MG.90.BX.YY

X = version numberYY = language version

VLT® 2800 Series


Parameter list with factory settings

PNU # Parameterdescription Factory setting 4-setup Conv.index

Datatype

001 Language English No 0 5002 Local/remote operation Remote-controlled Yes 0 5003 Local reference 000,000.000 Yes -3 4004 Active Setup Setup 1 No 0 5005 Programming Setup Active Setup No 0 5006 Setup copying No copying No 0 5007 LCP copy No copying No 0 5008 Display scaling 1.00 Yes -2 6009 Large display readout Frequency [Hz] Yes 0 5010 Small display line 1.1 Reference [%] Yes 0 5011 Small display line 1.2 Motor current [A] Yes 0 5012 Small display line 1.3 Power [kW] Yes 0 5013 Local control Remote control

as par. 100Yes 0 5

014 Local stop/reset Active Yes 0 5015 Local jog Not active Yes 0 5016 Local reversing Not active Yes 0 5017 Local reset of trip Active Yes 0 5018 Data change lock Not locked Yes 0 5019 Operating status at

power upForced stop,use saved ref.

Yes 0 5

020 Lock for Hand mode Active No 0 5024 User-defined Quick Menu Not active No 0 5025 Quick Menu Setup 000 No 0 6

4-Setup:'Yes' means that the parameter can be programmedindividually in each of the four Setups, i.e. one singleparameter can have four different data values. 'No'means that the data value will be the same in all Set-ups.

Conversion index:This number refers to a conversion figure to be usedwhen writing or reading via serial communication witha frequency converter.See Data character in Serial communication in the VLT2800 Design Guide.

Data type:Data type shows the type and length of the telegram.

Data type Description3 Integer 164 Integer 325 Unsigned 86 Unsigned 167 Unsigned 329 Text string

VLT® 2800 Series


All

abou

t VLT

280

0

PNU # Parameter-description Factory setting 4-setup Conv.index

Data-type

100 Configuration Speed reg., open loop Yes 0 5101 Torque characteristics Constant torque Yes 0 5102 Motor power PM,N depends on unit Yes 1 6103 Motor voltage UM,N depends on unit Yes -2 6104 Motor frequency fM,N 50 Hz Yes -1 6105 Motor current IM,N depends on motor selected Yes -2 7106 Rated motor speed depends on par. 102 Yes 0 6107 Automatic motor adjustment Optimisation off Yes 0 5108 Stator resistance RS depends on motor selected Yes -3 7109 Stator reactance XS depends on motor selected Yes -2 7117 Resonance damping OFF Yes 0 6119 High start torque 0.0 sec Yes -1 5120 Start delay 0.0 sec Yes -1 5121 Start function Coast in start del. Yes 0 5122 Function at stop Coast Yes 0 5123 Min. freq. for activation of

par. 1220.1 Hz Yes -1 5

126 DC braking time 10 sec. Yes -1 6127 DC brake engaging frequency OFF Yes -1 6128 Thermal motor protection No protection Yes 0 5130 Start frequency 0.0 Hz Yes -1 5131 Voltage at start 0.0 V Yes -1 6132 DC brake voltage 0% Yes 0 5133 Start voltage depends on unit Yes -2 6134 Load compensation 100 % Yes -1 6135 U/f-ratio depends on unit Yes -2 6136 Slip compensation 100 % Yes -1 3137 DC hold voltage 0% Yes 0 5138 Brake cut out value 3.0 Hz Yes -1 6139 Brake cut in frequency 3.0 Hz Yes -1 6140 Current, minimum value 0% Yes 0 5142 Leak reactance depends on motor selected Yes -3 7143 Internal ventilator control Automatic Yes 0 5144 AC brake factor 1.30 Yes -2 5146 Reset voltage vector Off Yes 0 5

VLT® 2800 Series


Factory Settings

PNU # Parameterdescription

Factory setting Changesduring opera-tion

4-setup Conv.index

Datatype

200 Output frequency range Clockwise only, 0-132Hz

No Yes 0 5

201 Output frequency,low limit f MIN

0.0 Hz Yes Yes -1 6

202 Output frequency,high limit f MAX

132 Hz Yes Yes -1 6

203 Reference range Min ref.-Max ref. Yes Yes 0 5204 Minimum ref RefMIN 0.000 Hz Yes Yes -3 4205 Maximum ref RefMAX 50.000 Hz Yes Yes -3 4206 Ramp type Linear Yes Yes 0 5207 Ramp-up time 1 3.00 sec. Yes Yes -2 7208 Ramp-down time 1 3.00 sec. Yes Yes -2 7209 Ramp-up time 2 3.00 sec. Yes Yes -2 7210 Ramp-down time 2 3.00 sec. Yes Yes -2 7211 Jog ramp time 3.00 sec. Yes Yes -2 7212 Quick stop ramp-down time 3.00 sec. Yes Yes -2 7213 Jog frequency 10.0 Hz Yes Yes -1 6214 Reference function Sum Yes Yes 0 5215 Preset reference 1 0.00% Yes Yes -2 3216 Preset reference 2 0.00% Yes Yes -2 3217 Preset reference 3 0.00% Yes Yes -2 3218 Preset reference 4 0.00% Yes Yes -2 3219 Catch up/slow down

reference0.00% Yes Yes -2 6

221 Current limit 160 % Yes Yes -1 6223 Warn. Low current 0.0 A Yes Yes -1 6224 Warn. High current IMAX Yes Yes -1 6225 Warn. Low frequency 0.0 Hz Yes Yes -1 6226 Warn. High frequency 132.0 Hz Yes Yes -1 6227 Warn. Low Feedback -4000.000 Yes Yes -3 4228 Warn. High Feedback 4000.000 Yes Yes -3 4229 Frequency bypass,

bandwidth0 Hz (OFF) Yes Yes 0 6

230 Frequency bypass 1 0.0 Hz Yes Yes -1 6231 Frequency bypass 2 0.0 Hz Yes Yes -1 6

VLT® 2800 Series


All

abou

t VLT

280

0


Datatype

302 Digital input, term. 18 Start Yes 0 5303 Digital input, term. 19 Reversing Yes 0 5304 Digital input, term. 27 Reset and coast

inverseYes 0 5

305 Digital input, term. 29 Jog Yes 0 5307 Digital input, term. 33 No function Yes 0 5308 Term. 53, analogue input voltage Reference Yes 0 5309 Term. 53, min scaling 0.0 V Yes -1 6310 Term. 53, max scaling 10.0 V Yes -1 6314 Term. 60, analogue input current No function Yes 0 5315 Term. 60, min scaling 0.0 mA Yes -4 6316 Term. 60, max scaling 20.0 mA Yes -4 6317 Time out 10 sec. Yes -1 5318 Function after timeout No function Yes 0 5319 Term. 42, analogue output 0-IMAX = 0-20 mA Yes 0 5323 Relay output Control ready Yes 0 5327 Pulse ref./FB 5000 Hz Yes 0 7341 Term. 46 digital output Control ready Yes 0 5342 Term. 46 Max. pulse output 5000 Hz Yes 0 6343 Precise stop function Normal ramp stop Yes 0 5344 Counter value 100000 pulses Yes 0 7349 Speed comp delay 10 ms Yes -3 6

4-Setup:'Yes' means that the parameter can be programmedindividually in each of the four Setups, i.e. one singleparameter can have four different data values. 'No'means that the data value will be the same in all Set-ups.




VLT® 2800 Series


PNU # Parameter description Factory setting 4-setup Conv.index

Datatype

400 Brake function Depends on unit type No 0 5405 Reset function Manual reset Yes 0 5406 Aut. restart time 5 sec. Yes 0 5409 Trip delay overcurrent Off (61 sec.) Yes 0 5411 Switching frequency 4.5 kHz Yes 0 6412 Var. carrier frequency No LC-filter Yes 0 5413 Overmodulation function On Yes 0 5414 Min. feedback 0.000 Yes -3 4415 Max. feedback 1500.000 Yes -3 4416 Process units No unit Yes 0 5417 Speed PID propor.ampl. 0.010 Yes -3 6418 Speed PID intergra. 100 ms Yes -5 7419 Speed PID differentiation time 20.00 ms Yes -5 7420 Speed PID diff. amplification

limit5.0 Yes -1 6

421 Speed PID lowpass filter 20 ms Yes -3 6423 U1 voltage par. 103 Yes -1 6424 F1 frequency Par. 104 Yes -1 6425 U2 voltage par. 103 Yes -1 6426 F2 frequency par. 104 Yes -1 6427 U3 voltage par. 103 Yes -1 6428 F3 frequency par. 104 Yes -1 6437 Proc. PID no/inv. Normal Yes 0 5438 Proc. PID anti wind. Active Yes 0 5439 Proc. PID start frequency Par. 201 Yes -1 6440 Proc. PID start

proportional ampl.0.01 Yes -2 6

441 Proc. PID integration time Off (9999.99 s) Yes -2 7442 Proc. PID differentiation time Off (0.00 s). Yes -2 6443 Proc. PID diff. ampl. limit 5.0 Yes -1 6444 Proc. PID lowpass filter time 0.02 s Yes -2 6445 Flying start Not possible Yes 0 5451 Speed PID feedforward factor 100% Yes 0 6452 Controller range 10 % Yes -1 6456 Brake voltage reduce 0 Yes 0 5457 Phase loss function Trip 461 Feedback conversion Linear Yes 0 5462 Enhanced sleep mode timer Off 463 Boost setpoint 100% 464 Wakeup pressure 0 465 Minimum pump frequency 20 466 Maximum pump frequency 50 467 Minimum pump power 0 W 468 Maximum pump power 0 W 469 No flow power compensation 1.2 470 Dry run time out Off 471 Dry run interlock timer 30 min. 484 Initial ramp Off 485 Fill rate Off 486 Filled setpoint Parameter 414

VLT® 2800 Series


All

abou

t VLT

280

0


Datatype

500 Address 1 No 0 5501 Baudrate 9600 Baud No 0 5502 Coasting stop Logic or Yes 0 5503 Quick stop Logic or Yes 0 5504 DC brake Logic or Yes 0 5505 Start Logic or Yes 0 5506 Reversing Logic or Yes 0 5507 Selection of Setup Logic or Yes 0 5508 Selection of preset ref. Logic or Yes 0 5509 Bus jog 1 10.0 Hz Yes -1 6510 Bus jog 2 10.0 Hz Yes -1 6512 Telegram profile FC protocol Yes 0 5513 Bus time interval 1 sec. Yes 0 5514 Bus time interval function Off Yes 0 5515 Data readout: Reference % No -1 3516 Data readout: Reference [unit] No -3 4517 Data readout: Feedback [unit] No -3 4518 Data readout: Frequency No -1 3519 Data readout: Frequency x scaling No -1 3520 Data readout: Motor current No -2 7521 Data readout: Torque No -1 3522 Data readout: Power [kW] No 1 7523 Data readout: Power [HP] No -2 7524 Data readout: Motor voltage [V] No -1 6525 Data readout: DC Link voltage No 0 6526 Data readout: Motor thermal load No 0 5527 Data readout: Inverter thermal load No 0 5528 Data readout: Digital input No 0 5529 Data readout: Analogue input, term. 53 No -1 5531 Data readout: Analogue input, term. 60 No -4 5532 Data readout: Pulse reference No -1 7533 Data readout: External reference No -1 6534 Data readout: Status word No 0 6535 Data readout: Bus feedback 1 No 0 3537 Data readout: Inverter temperature No 0 5538 Data readout: Alarm word No 0 7539 Data readout: Control word No 0 6540 Data readout: Warning word No 0 7541 Data readout: Extended status word No 0 7544 Data readout: Pulse count No 0 7

VLT® 2800 Series



Datatype

600 Operating hours No 73 7601 Hours run No 73 7602 kWh counter No 2 7603 Number of cut ins No 0 6604 Number of overtemperatures No 0 6605 Number of overvoltages No 0 6615 Fault log: Error code No 0 5616 Fault log: Time No 0 7617 Fault log: Value No 0 3618 Reset of kWh counter No reset No 0 7619 Reset of running hours counter No reset No 0 5620 Operation mode Normal operation No 0 5621 Nameplate: Unit type No 0 9624 Nameplate: Software version No 0 9625 Nameplate: LCP identification no. No 0 9626 Nameplate: Database identification no. No -2 9627 Nameplate: Power parts version No 0 9628 Nameplate: Application option type No 0 9630 Nameplate: Communication option type No 0 9632 Nameplate: BMC software identification No 0 9634 Nameplate: Unit identification for communication No 0 9635 Nameplate: Software parts no. No 0 9640 Software version No -2 6641 BMC software identification No -2 6642 Power card identification No -2 6678 Configure control card 700- Used for wobble function, please see MI28J2xx

4-Setup:'Yes' means that the parameter can be programmedindividually in each of the four Setups, i.e. one singleparameter can have four different data values. No'means that the data value will be the same in all Set-ups.




VLT® 2800 Series


All

abou

t VLT

280

0

Index

AAC brake 44

Active Setup 11

Aggressive environments 82

Analogue input 38

Analogue output 40



BBrake connection 70

Brake cut in frequency 26

Brake cut out value 26

Brake function 44

Brake Voltage Reduce 51

CCatch up 32

CHANGE DATA 7

Connection of a 2-wire transmitter 74

Constant torque 18

Control cables 73

Control cables 72

Control keys 7

control panel 7

Control terminals 71

Control unit 7

Counter value 43

Current limit, 32

Current, minimum value 26

DDC brake time 23

DC brake voltage 25

DC hold voltage 26

Derating for ambient temperature 82

Derating for high switching frequency 83

Digital / pulse output 42

Digital inputs 35

Dimensions 58

Direction of motor rotation 68

Display 7

Display mode 8

Display readout 8

Display readout 77

Display scaling of output frequency 12

EEarth connection 70

Earthing 63

Electrical installation 65

Electrical installation, control cables 72

EMC emission 84

EMC-correct electrical installation 64

ETR - Electronic Thermal Relay 24

Extra protection 63

FFan control 27

Feedback conversion 52

Feedback, 45

Flying start 50

Four Setups 11

Frequence bypass, bandwidth 34

Function at stop 23

GGain AC brake 27

Galvanic Isolation (PELV) 83

HHand Auto 8

Hand operation 16

High voltage test 63



IIntegration 62

IT mains 68

JJog frequency 31

Jog ramp time 30

LLanguage 10

Large display readout 12

LCP copy 11

Leakage reactance 26

Literature 92

Load compensation 25

Load sharing 71

Local reference 10

Lock for data changes 16

MMains connection 67

Mains supply 90

Manual initialisation 7

Maximum Pulse 29 42

Mechanical brake 71

Mechanical installation 62

Menu mode 8

Menu mode 8

Motor cables 69

Motor coils 59

Motor connection 68

Motor current 19

Motor frequency 19

Motor power 19

Motor thermal protection 70

Motor voltage 19

OOperating mode at power-up, local operation 16

Order form 75

Output frequency 28

Overmodulation function 45

VLT® 2800 Series


PParallel connection of motors 69

Parameter list with factory settings 93

Phase loss function 52

Potentiometer reference 74

Precise stop function 43

Pre-fuses 67

Preset reference 31

Process control, closed loop 18

Process PID 48

Process units 46

Programming Setup 11

Pulse reference/feedback 42

Pulse start/stop 74

QQuick menu 8

Quick menu 8

QUICK MENU 7

Quick Menu setup 17

Quick menu, userdefined 16

Quick-stop ramp-down time 31

RRamp type 29

Ramp-down time 30

Ramp-up time 30

Rated motor speed 19

RCD 70

RCD relays 63

Reference function 31

Reference, 29

Relative 31

Relay connection 73

Relay output 1-3 40

Reset function 44

Reset voltage vector 27

Resonance damping 21

reversing 36

RFI 1B filter 59

RFI switch 68

SSetup copying 11

Side-by-side 62

Slip compensation 26

Slow down 32

Software Dialog 73

Spacing for mechanical installation 62

Special motor mode 18

Speed comp delay 43

Speed control, closed loop 18

Speed control, open loop 18

Speed PID 46

Speed up/down 74

Square root 52

Start 50

Start delay 22

Start frequency 24

Start function 22

Start torque 22

Start voltage 25

Start/stop 74

Stator reactance 21

Stator resistance 20

STOP/RESET 7

Sub D plug 73

Sum 31

Switches 1-4 73

Switching frequency 45

TTemperature-dependent switch frequency 83

Terminal 42 40

Terminal 46 42

Terminal 53 38

Terminal 60 38

Terminal cover 59

Terminals 74

Thermal motor protection 23

Thermistor 24

Thermistor 37

Tightening Torque, Power Terminals 71

Time out 39

Torque characteristic 18

UU/f-ratio 25

UL Standard 84

VVariable torque 18

WWarning 52

Warning functions 32

Warning words, extended status words and Alarmwords 81

Warnings/alarm messages 77

VLT® 2800 Series


Inde

x

VLT® 2800

Rev. 2006-12-08

www.danfoss.com/drives

195R0027 MG27A202

*MG27A202*

MG

27A202

VLT ®

2800 Op

erating

Instru

ction

s

Operating Instructions

Documents

VLT® 2800 Quick Setup SW3VLT 2800 Operating Instructions Software version: 3.1x This Design Guide can be used for all VLT 2800 Series frequency converters with software version 3.1x